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Finding the Fourth Proportional to 560.93, 841.39 and 345.47

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Solution

The fourth proportional to 560.93, 841.39 and 345.47 is: 518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.93 : 841.39 = 345.47 : x
  2. Step 2: Convert to fraction form
    560.93/841.39 = 345.47/x
  3. Step 3: Cross multiply
    560.93x = 841.39 × 345.47
  4. Step 4: Simplify right side
    560.93x = 290,669.93
  5. Step 5: Solve for x
    x = 290,669.93/560.93
  6. Step 6: Final answer
    x = 518.20

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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.