Home / 354,240.02-531,476.68-143,821.46

Finding the Fourth Proportional to 354,240.02, 531,476.68 and 143,821.46

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Solution

The fourth proportional to 354,240.02, 531,476.68 and 143,821.46 is: 215,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,240.02 : 531,476.68 = 143,821.46 : x
  2. Step 2: Convert to fraction form
    354,240.02/531,476.68 = 143,821.46/x
  3. Step 3: Cross multiply
    354,240.02x = 531,476.68 × 143,821.46
  4. Step 4: Simplify right side
    354,240.02x = 76,437,752,073.55
  5. Step 5: Solve for x
    x = 76,437,752,073.55/354,240.02
  6. Step 6: Final answer
    x = 215,779.55

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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.