Home / 371,529.68-557,118.87-143,931.90

Finding the Fourth Proportional to 371,529.68, 557,118.87 and 143,931.90

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Solution

The fourth proportional to 371,529.68, 557,118.87 and 143,931.90 is: 215,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,529.68 : 557,118.87 = 143,931.90 : x
  2. Step 2: Convert to fraction form
    371,529.68/557,118.87 = 143,931.90/x
  3. Step 3: Cross multiply
    371,529.68x = 557,118.87 × 143,931.90
  4. Step 4: Simplify right side
    371,529.68x = 80,187,177,484.95
  5. Step 5: Solve for x
    x = 80,187,177,484.95/371,529.68
  6. Step 6: Final answer
    x = 215,829.81

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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.