Home / 381,331.59-571,657.47-144,840.35

Finding the Fourth Proportional to 381,331.59, 571,657.47 and 144,840.35

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Solution

The fourth proportional to 381,331.59, 571,657.47 and 144,840.35 is: 217,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,331.59 : 571,657.47 = 144,840.35 : x
  2. Step 2: Convert to fraction form
    381,331.59/571,657.47 = 144,840.35/x
  3. Step 3: Cross multiply
    381,331.59x = 571,657.47 × 144,840.35
  4. Step 4: Simplify right side
    381,331.59x = 82,799,065,176.63
  5. Step 5: Solve for x
    x = 82,799,065,176.63/381,331.59
  6. Step 6: Final answer
    x = 217,131.41

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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.