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Finding the Fourth Proportional to 418,353.84, 577,332.12 and 227,367.72

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Solution

The fourth proportional to 418,353.84, 577,332.12 and 227,367.72 is: 313,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,353.84 : 577,332.12 = 227,367.72 : x
  2. Step 2: Convert to fraction form
    418,353.84/577,332.12 = 227,367.72/x
  3. Step 3: Cross multiply
    418,353.84x = 577,332.12 × 227,367.72
  4. Step 4: Simplify right side
    418,353.84x = 131,266,687,807.17
  5. Step 5: Solve for x
    x = 131,266,687,807.17/418,353.84
  6. Step 6: Final answer
    x = 313,769.53

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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.