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Finding the Fourth Proportional to 439,424.80, 659,098.80 and 143,936.80

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Solution

The fourth proportional to 439,424.80, 659,098.80 and 143,936.80 is: 215,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,424.80 : 659,098.80 = 143,936.80 : x
  2. Step 2: Convert to fraction form
    439,424.80/659,098.80 = 143,936.80/x
  3. Step 3: Cross multiply
    439,424.80x = 659,098.80 × 143,936.80
  4. Step 4: Simplify right side
    439,424.80x = 94,868,572,155.84
  5. Step 5: Solve for x
    x = 94,868,572,155.84/439,424.80
  6. Step 6: Final answer
    x = 215,892.62

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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.