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Finding the Fourth Proportional to 526,103.08, 726,263.76 and 308,281.42

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Solution

The fourth proportional to 526,103.08, 726,263.76 and 308,281.42 is: 425,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,103.08 : 726,263.76 = 308,281.42 : x
  2. Step 2: Convert to fraction form
    526,103.08/726,263.76 = 308,281.42/x
  3. Step 3: Cross multiply
    526,103.08x = 726,263.76 × 308,281.42
  4. Step 4: Simplify right side
    526,103.08x = 223,893,623,227.34
  5. Step 5: Solve for x
    x = 223,893,623,227.34/526,103.08
  6. Step 6: Final answer
    x = 425,569.88

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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.