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Finding the Fourth Proportional to 418,353.90, 577,332.84 and 227,367.30

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Solution

The fourth proportional to 418,353.90, 577,332.84 and 227,367.30 is: 313,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,353.90 : 577,332.84 = 227,367.30 : x
  2. Step 2: Convert to fraction form
    418,353.90/577,332.84 = 227,367.30/x
  3. Step 3: Cross multiply
    418,353.90x = 577,332.84 × 227,367.30
  4. Step 4: Simplify right side
    418,353.90x = 131,266,609,032.13
  5. Step 5: Solve for x
    x = 131,266,609,032.13/418,353.90
  6. Step 6: Final answer
    x = 313,769.30

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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.