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Finding the Fourth Proportional to 144,446.40, 216,669.60 and 143,524.80

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Solution

The fourth proportional to 144,446.40, 216,669.60 and 143,524.80 is: 215,287.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,446.40 : 216,669.60 = 143,524.80 : x
  2. Step 2: Convert to fraction form
    144,446.40/216,669.60 = 143,524.80/x
  3. Step 3: Cross multiply
    144,446.40x = 216,669.60 × 143,524.80
  4. Step 4: Simplify right side
    144,446.40x = 31,097,461,006.08
  5. Step 5: Solve for x
    x = 31,097,461,006.08/144,446.40
  6. Step 6: Final answer
    x = 215,287.20

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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.