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Finding the Fourth Proportional to 442,298.88, 663,705.30 and 186,112.68

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Solution

The fourth proportional to 442,298.88, 663,705.30 and 186,112.68 is: 279,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,298.88 : 663,705.30 = 186,112.68 : x
  2. Step 2: Convert to fraction form
    442,298.88/663,705.30 = 186,112.68/x
  3. Step 3: Cross multiply
    442,298.88x = 663,705.30 × 186,112.68
  4. Step 4: Simplify right side
    442,298.88x = 123,523,972,113.20
  5. Step 5: Solve for x
    x = 123,523,972,113.20/442,298.88
  6. Step 6: Final answer
    x = 279,277.15

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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.