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Finding the Fourth Proportional to 615.12, 925.14 and 559.26

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Solution

The fourth proportional to 615.12, 925.14 and 559.26 is: 841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.12 : 925.14 = 559.26 : x
  2. Step 2: Convert to fraction form
    615.12/925.14 = 559.26/x
  3. Step 3: Cross multiply
    615.12x = 925.14 × 559.26
  4. Step 4: Simplify right side
    615.12x = 517,393.80
  5. Step 5: Solve for x
    x = 517,393.80/615.12
  6. Step 6: Final answer
    x = 841.13

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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.