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Finding the Fourth Proportional to 403,227.80, 604,841.70 and 137,288.60

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Solution

The fourth proportional to 403,227.80, 604,841.70 and 137,288.60 is: 205,932.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,227.80 : 604,841.70 = 137,288.60 : x
  2. Step 2: Convert to fraction form
    403,227.80/604,841.70 = 137,288.60/x
  3. Step 3: Cross multiply
    403,227.80x = 604,841.70 × 137,288.60
  4. Step 4: Simplify right side
    403,227.80x = 83,037,870,214.62
  5. Step 5: Solve for x
    x = 83,037,870,214.62/403,227.80
  6. Step 6: Final answer
    x = 205,932.90

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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.