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Finding the Fourth Proportional to 503,117.30, 753,869.55 and 266,150.90

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Solution

The fourth proportional to 503,117.30, 753,869.55 and 266,150.90 is: 398,799.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,117.30 : 753,869.55 = 266,150.90 : x
  2. Step 2: Convert to fraction form
    503,117.30/753,869.55 = 266,150.90/x
  3. Step 3: Cross multiply
    503,117.30x = 753,869.55 × 266,150.90
  4. Step 4: Simplify right side
    503,117.30x = 200,643,059,215.10
  5. Step 5: Solve for x
    x = 200,643,059,215.10/503,117.30
  6. Step 6: Final answer
    x = 398,799.76

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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.