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Finding the Fourth Proportional to 564.03, 777.87 and 525.15

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Solution

The fourth proportional to 564.03, 777.87 and 525.15 is: 724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.03 : 777.87 = 525.15 : x
  2. Step 2: Convert to fraction form
    564.03/777.87 = 525.15/x
  3. Step 3: Cross multiply
    564.03x = 777.87 × 525.15
  4. Step 4: Simplify right side
    564.03x = 408,498.43
  5. Step 5: Solve for x
    x = 408,498.43/564.03
  6. Step 6: Final answer
    x = 724.25

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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.