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Finding the Fourth Proportional to 589.93, 814.49 and 357.19

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Solution

The fourth proportional to 589.93, 814.49 and 357.19 is: 493.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.93 : 814.49 = 357.19 : x
  2. Step 2: Convert to fraction form
    589.93/814.49 = 357.19/x
  3. Step 3: Cross multiply
    589.93x = 814.49 × 357.19
  4. Step 4: Simplify right side
    589.93x = 290,925.20
  5. Step 5: Solve for x
    x = 290,925.20/589.93
  6. Step 6: Final answer
    x = 493.15

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.