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Finding the Fourth Proportional to 219,154.80, 328,732.20 and 101,056.80

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Solution

The fourth proportional to 219,154.80, 328,732.20 and 101,056.80 is: 151,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,154.80 : 328,732.20 = 101,056.80 : x
  2. Step 2: Convert to fraction form
    219,154.80/328,732.20 = 101,056.80/x
  3. Step 3: Cross multiply
    219,154.80x = 328,732.20 × 101,056.80
  4. Step 4: Simplify right side
    219,154.80x = 33,220,624,188.96
  5. Step 5: Solve for x
    x = 33,220,624,188.96/219,154.80
  6. Step 6: Final answer
    x = 151,585.20

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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.