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Finding the Fourth Proportional to 225,069.30, 310,625.04 and 129,580.02

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Solution

The fourth proportional to 225,069.30, 310,625.04 and 129,580.02 is: 178,837.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,069.30 : 310,625.04 = 129,580.02 : x
  2. Step 2: Convert to fraction form
    225,069.30/310,625.04 = 129,580.02/x
  3. Step 3: Cross multiply
    225,069.30x = 310,625.04 × 129,580.02
  4. Step 4: Simplify right side
    225,069.30x = 40,250,798,895.70
  5. Step 5: Solve for x
    x = 40,250,798,895.70/225,069.30
  6. Step 6: Final answer
    x = 178,837.36

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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.