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Finding the Fourth Proportional to 568.29, 785.15 and 451.14

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Solution

The fourth proportional to 568.29, 785.15 and 451.14 is: 623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.29 : 785.15 = 451.14 : x
  2. Step 2: Convert to fraction form
    568.29/785.15 = 451.14/x
  3. Step 3: Cross multiply
    568.29x = 785.15 × 451.14
  4. Step 4: Simplify right side
    568.29x = 354,210.32
  5. Step 5: Solve for x
    x = 354,210.32/568.29
  6. Step 6: Final answer
    x = 623.29

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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.