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Finding the Fourth Proportional to 144,348.56, 216,550.20 and 65,469

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Solution

The fourth proportional to 144,348.56, 216,550.20 and 65,469 is: 98,215.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,348.56 : 216,550.20 = 65,469 : x
  2. Step 2: Convert to fraction form
    144,348.56/216,550.20 = 65,469/x
  3. Step 3: Cross multiply
    144,348.56x = 216,550.20 × 65,469
  4. Step 4: Simplify right side
    144,348.56x = 14,177,325,043.80
  5. Step 5: Solve for x
    x = 14,177,325,043.80/144,348.56
  6. Step 6: Final answer
    x = 98,215.91

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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.