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Finding the Fourth Proportional to 442,655.40, 663,108.30 and 242,617.80

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Solution

The fourth proportional to 442,655.40, 663,108.30 and 242,617.80 is: 363,447.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,655.40 : 663,108.30 = 242,617.80 : x
  2. Step 2: Convert to fraction form
    442,655.40/663,108.30 = 242,617.80/x
  3. Step 3: Cross multiply
    442,655.40x = 663,108.30 × 242,617.80
  4. Step 4: Simplify right side
    442,655.40x = 160,881,876,907.74
  5. Step 5: Solve for x
    x = 160,881,876,907.74/442,655.40
  6. Step 6: Final answer
    x = 363,447.23

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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.