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Finding the Fourth Proportional to 225,007.16, 310,509.90 and 123,042.02

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Solution

The fourth proportional to 225,007.16, 310,509.90 and 123,042.02 is: 169,797.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,007.16 : 310,509.90 = 123,042.02 : x
  2. Step 2: Convert to fraction form
    225,007.16/310,509.90 = 123,042.02/x
  3. Step 3: Cross multiply
    225,007.16x = 310,509.90 × 123,042.02
  4. Step 4: Simplify right side
    225,007.16x = 38,205,763,773.45
  5. Step 5: Solve for x
    x = 38,205,763,773.45/225,007.16
  6. Step 6: Final answer
    x = 169,797.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.