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Finding the Fourth Proportional to 144,172.96, 216,258.72 and 38,991.52

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Solution

The fourth proportional to 144,172.96, 216,258.72 and 38,991.52 is: 58,487.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,172.96 : 216,258.72 = 38,991.52 : x
  2. Step 2: Convert to fraction form
    144,172.96/216,258.72 = 38,991.52/x
  3. Step 3: Cross multiply
    144,172.96x = 216,258.72 × 38,991.52
  4. Step 4: Simplify right side
    144,172.96x = 8,432,256,206.05
  5. Step 5: Solve for x
    x = 8,432,256,206.05/144,172.96
  6. Step 6: Final answer
    x = 58,487.09

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1.5x scale

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.