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Finding the Fourth Proportional to 300,712.76, 451,068.98 and 120,798.17

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Solution

The fourth proportional to 300,712.76, 451,068.98 and 120,798.17 is: 181,197.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,712.76 : 451,068.98 = 120,798.17 : x
  2. Step 2: Convert to fraction form
    300,712.76/451,068.98 = 120,798.17/x
  3. Step 3: Cross multiply
    300,712.76x = 451,068.98 × 120,798.17
  4. Step 4: Simplify right side
    300,712.76x = 54,488,304,468.43
  5. Step 5: Solve for x
    x = 54,488,304,468.43/300,712.76
  6. Step 6: Final answer
    x = 181,197.18

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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.