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Finding the Fourth Proportional to 225,082.35, 310,579.13 and 129,570.59

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Solution

The fourth proportional to 225,082.35, 310,579.13 and 129,570.59 is: 178,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,082.35 : 310,579.13 = 129,570.59 : x
  2. Step 2: Convert to fraction form
    225,082.35/310,579.13 = 129,570.59/x
  3. Step 3: Cross multiply
    225,082.35x = 310,579.13 × 129,570.59
  4. Step 4: Simplify right side
    225,082.35x = 40,241,921,115.79
  5. Step 5: Solve for x
    x = 40,241,921,115.79/225,082.35
  6. Step 6: Final answer
    x = 178,787.55

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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.