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Finding the Fourth Proportional to 378,346.28, 567,602.48 and 112,127.68

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Solution

The fourth proportional to 378,346.28, 567,602.48 and 112,127.68 is: 168,216.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,346.28 : 567,602.48 = 112,127.68 : x
  2. Step 2: Convert to fraction form
    378,346.28/567,602.48 = 112,127.68/x
  3. Step 3: Cross multiply
    378,346.28x = 567,602.48 × 112,127.68
  4. Step 4: Simplify right side
    378,346.28x = 63,643,949,244.65
  5. Step 5: Solve for x
    x = 63,643,949,244.65/378,346.28
  6. Step 6: Final answer
    x = 168,216.14

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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.