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Finding the Fourth Proportional to 144,049.60, 216,074.40 and 38,868.40

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Solution

The fourth proportional to 144,049.60, 216,074.40 and 38,868.40 is: 58,302.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,049.60 : 216,074.40 = 38,868.40 : x
  2. Step 2: Convert to fraction form
    144,049.60/216,074.40 = 38,868.40/x
  3. Step 3: Cross multiply
    144,049.60x = 216,074.40 × 38,868.40
  4. Step 4: Simplify right side
    144,049.60x = 8,398,466,208.96
  5. Step 5: Solve for x
    x = 8,398,466,208.96/144,049.60
  6. Step 6: Final answer
    x = 58,302.60

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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.