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Finding the Fourth Proportional to 418,353.66, 577,332.52 and 227,367.06

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Solution

The fourth proportional to 418,353.66, 577,332.52 and 227,367.06 is: 313,768.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,353.66 : 577,332.52 = 227,367.06 : x
  2. Step 2: Convert to fraction form
    418,353.66/577,332.52 = 227,367.06/x
  3. Step 3: Cross multiply
    418,353.66x = 577,332.52 × 227,367.06
  4. Step 4: Simplify right side
    418,353.66x = 131,266,397,714.79
  5. Step 5: Solve for x
    x = 131,266,397,714.79/418,353.66
  6. Step 6: Final answer
    x = 313,768.97

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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.