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Finding the Fourth Proportional to 616.19, 924.51 and 287.28

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Solution

The fourth proportional to 616.19, 924.51 and 287.28 is: 431.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.19 : 924.51 = 287.28 : x
  2. Step 2: Convert to fraction form
    616.19/924.51 = 287.28/x
  3. Step 3: Cross multiply
    616.19x = 924.51 × 287.28
  4. Step 4: Simplify right side
    616.19x = 265,593.23
  5. Step 5: Solve for x
    x = 265,593.23/616.19
  6. Step 6: Final answer
    x = 431.03

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.