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Finding the Fourth Proportional to 144,617.20, 216,958.20 and 55,862.80

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Solution

The fourth proportional to 144,617.20, 216,958.20 and 55,862.80 is: 83,806.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,617.20 : 216,958.20 = 55,862.80 : x
  2. Step 2: Convert to fraction form
    144,617.20/216,958.20 = 55,862.80/x
  3. Step 3: Cross multiply
    144,617.20x = 216,958.20 × 55,862.80
  4. Step 4: Simplify right side
    144,617.20x = 12,119,892,534.96
  5. Step 5: Solve for x
    x = 12,119,892,534.96/144,617.20
  6. Step 6: Final answer
    x = 83,806.72

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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.