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Finding the Fourth Proportional to 503,275.50, 754,913.25 and 129,298.50

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Solution

The fourth proportional to 503,275.50, 754,913.25 and 129,298.50 is: 193,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,275.50 : 754,913.25 = 129,298.50 : x
  2. Step 2: Convert to fraction form
    503,275.50/754,913.25 = 129,298.50/x
  3. Step 3: Cross multiply
    503,275.50x = 754,913.25 × 129,298.50
  4. Step 4: Simplify right side
    503,275.50x = 97,609,150,855.13
  5. Step 5: Solve for x
    x = 97,609,150,855.13/503,275.50
  6. Step 6: Final answer
    x = 193,947.75

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Similar ratio
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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.