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Finding the Fourth Proportional to 378,455.76, 567,605.07 and 112,153.68

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Solution

The fourth proportional to 378,455.76, 567,605.07 and 112,153.68 is: 168,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,455.76 : 567,605.07 = 112,153.68 : x
  2. Step 2: Convert to fraction form
    378,455.76/567,605.07 = 112,153.68/x
  3. Step 3: Cross multiply
    378,455.76x = 567,605.07 × 112,153.68
  4. Step 4: Simplify right side
    378,455.76x = 63,658,997,387.16
  5. Step 5: Solve for x
    x = 63,658,997,387.16/378,455.76
  6. Step 6: Final answer
    x = 168,207.24

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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.