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Finding the Fourth Proportional to 418,383.70, 577,373.30 and 227,397.55

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Solution

The fourth proportional to 418,383.70, 577,373.30 and 227,397.55 is: 313,810.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,383.70 : 577,373.30 = 227,397.55 : x
  2. Step 2: Convert to fraction form
    418,383.70/577,373.30 = 227,397.55/x
  3. Step 3: Cross multiply
    418,383.70x = 577,373.30 × 227,397.55
  4. Step 4: Simplify right side
    418,383.70x = 131,293,273,855.42
  5. Step 5: Solve for x
    x = 131,293,273,855.42/418,383.70
  6. Step 6: Final answer
    x = 313,810.68

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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.