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Finding the Fourth Proportional to 442,607.90, 663,037.05 and 242,570.30

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Solution

The fourth proportional to 442,607.90, 663,037.05 and 242,570.30 is: 363,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,607.90 : 663,037.05 = 242,570.30 : x
  2. Step 2: Convert to fraction form
    442,607.90/663,037.05 = 242,570.30/x
  3. Step 3: Cross multiply
    442,607.90x = 663,037.05 × 242,570.30
  4. Step 4: Simplify right side
    442,607.90x = 160,833,096,129.62
  5. Step 5: Solve for x
    x = 160,833,096,129.62/442,607.90
  6. Step 6: Final answer
    x = 363,376.02

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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.