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Finding the Fourth Proportional to 272,101.80, 408,045.90 and 103,532.60

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Solution

The fourth proportional to 272,101.80, 408,045.90 and 103,532.60 is: 155,258.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,101.80 : 408,045.90 = 103,532.60 : x
  2. Step 2: Convert to fraction form
    272,101.80/408,045.90 = 103,532.60/x
  3. Step 3: Cross multiply
    272,101.80x = 408,045.90 × 103,532.60
  4. Step 4: Simplify right side
    272,101.80x = 42,246,052,946.34
  5. Step 5: Solve for x
    x = 42,246,052,946.34/272,101.80
  6. Step 6: Final answer
    x = 155,258.26

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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.