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Finding the Fourth Proportional to 665,003.65, 997,714.71 and 238,248.64

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Solution

The fourth proportional to 665,003.65, 997,714.71 and 238,248.64 is: 357,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,003.65 : 997,714.71 = 238,248.64 : x
  2. Step 2: Convert to fraction form
    665,003.65/997,714.71 = 238,248.64/x
  3. Step 3: Cross multiply
    665,003.65x = 997,714.71 × 238,248.64
  4. Step 4: Simplify right side
    665,003.65x = 237,704,172,765.49
  5. Step 5: Solve for x
    x = 237,704,172,765.49/665,003.65
  6. Step 6: Final answer
    x = 357,447.92

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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.