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Finding the Fourth Proportional to 418,535.70, 577,542.12 and 232,271.88

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Solution

The fourth proportional to 418,535.70, 577,542.12 and 232,271.88 is: 320,514.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,535.70 : 577,542.12 = 232,271.88 : x
  2. Step 2: Convert to fraction form
    418,535.70/577,542.12 = 232,271.88/x
  3. Step 3: Cross multiply
    418,535.70x = 577,542.12 × 232,271.88
  4. Step 4: Simplify right side
    418,535.70x = 134,146,793,991.59
  5. Step 5: Solve for x
    x = 134,146,793,991.59/418,535.70
  6. Step 6: Final answer
    x = 320,514.58

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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.