Home / 204,553.40-306,871.70-86,224.55

Finding the Fourth Proportional to 204,553.40, 306,871.70 and 86,224.55

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Solution

The fourth proportional to 204,553.40, 306,871.70 and 86,224.55 is: 129,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,553.40 : 306,871.70 = 86,224.55 : x
  2. Step 2: Convert to fraction form
    204,553.40/306,871.70 = 86,224.55/x
  3. Step 3: Cross multiply
    204,553.40x = 306,871.70 × 86,224.55
  4. Step 4: Simplify right side
    204,553.40x = 26,459,872,274.75
  5. Step 5: Solve for x
    x = 26,459,872,274.75/204,553.40
  6. Step 6: Final answer
    x = 129,354.35

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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.