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Finding the Fourth Proportional to 506,754.15, 760,430.76 and 187,129.89

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Solution

The fourth proportional to 506,754.15, 760,430.76 and 187,129.89 is: 280,805.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,754.15 : 760,430.76 = 187,129.89 : x
  2. Step 2: Convert to fraction form
    506,754.15/760,430.76 = 187,129.89/x
  3. Step 3: Cross multiply
    506,754.15x = 760,430.76 × 187,129.89
  4. Step 4: Simplify right side
    506,754.15x = 142,299,324,471.42
  5. Step 5: Solve for x
    x = 142,299,324,471.42/506,754.15
  6. Step 6: Final answer
    x = 280,805.44

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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.