Home / 220,529.20-330,966.60-102,215.20

Finding the Fourth Proportional to 220,529.20, 330,966.60 and 102,215.20

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Solution

The fourth proportional to 220,529.20, 330,966.60 and 102,215.20 is: 153,402.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,529.20 : 330,966.60 = 102,215.20 : x
  2. Step 2: Convert to fraction form
    220,529.20/330,966.60 = 102,215.20/x
  3. Step 3: Cross multiply
    220,529.20x = 330,966.60 × 102,215.20
  4. Step 4: Simplify right side
    220,529.20x = 33,829,817,212.32
  5. Step 5: Solve for x
    x = 33,829,817,212.32/220,529.20
  6. Step 6: Final answer
    x = 153,402.89

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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.