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Finding the Fourth Proportional to 418,699.74, 577,799.28 and 227,708.76

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Solution

The fourth proportional to 418,699.74, 577,799.28 and 227,708.76 is: 314,234.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,699.74 : 577,799.28 = 227,708.76 : x
  2. Step 2: Convert to fraction form
    418,699.74/577,799.28 = 227,708.76/x
  3. Step 3: Cross multiply
    418,699.74x = 577,799.28 × 227,708.76
  4. Step 4: Simplify right side
    418,699.74x = 131,569,957,577.69
  5. Step 5: Solve for x
    x = 131,569,957,577.69/418,699.74
  6. Step 6: Final answer
    x = 314,234.63

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1.5x scale

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.