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Finding the Fourth Proportional to 378,480.29, 567,722.66 and 112,243.01

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Solution

The fourth proportional to 378,480.29, 567,722.66 and 112,243.01 is: 168,365.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,480.29 : 567,722.66 = 112,243.01 : x
  2. Step 2: Convert to fraction form
    378,480.29/567,722.66 = 112,243.01/x
  3. Step 3: Cross multiply
    378,480.29x = 567,722.66 × 112,243.01
  4. Step 4: Simplify right side
    378,480.29x = 63,722,896,803.78
  5. Step 5: Solve for x
    x = 63,722,896,803.78/378,480.29
  6. Step 6: Final answer
    x = 168,365.17

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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.