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Finding the Fourth Proportional to 288,660.10, 433,000.05 and 88,978.90

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Solution

The fourth proportional to 288,660.10, 433,000.05 and 88,978.90 is: 133,471.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,660.10 : 433,000.05 = 88,978.90 : x
  2. Step 2: Convert to fraction form
    288,660.10/433,000.05 = 88,978.90/x
  3. Step 3: Cross multiply
    288,660.10x = 433,000.05 × 88,978.90
  4. Step 4: Simplify right side
    288,660.10x = 38,527,868,148.95
  5. Step 5: Solve for x
    x = 38,527,868,148.95/288,660.10
  6. Step 6: Final answer
    x = 133,471.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.