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Finding the Fourth Proportional to 418,265.80, 577,207.38 and 227,281.48

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Solution

The fourth proportional to 418,265.80, 577,207.38 and 227,281.48 is: 313,648.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,265.80 : 577,207.38 = 227,281.48 : x
  2. Step 2: Convert to fraction form
    418,265.80/577,207.38 = 227,281.48/x
  3. Step 3: Cross multiply
    418,265.80x = 577,207.38 × 227,281.48
  4. Step 4: Simplify right side
    418,265.80x = 131,188,547,593.32
  5. Step 5: Solve for x
    x = 131,188,547,593.32/418,265.80
  6. Step 6: Final answer
    x = 313,648.76

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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.