Home / 431,947.46-648,118.11-221,733.14

Finding the Fourth Proportional to 431,947.46, 648,118.11 and 221,733.14

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Solution

The fourth proportional to 431,947.46, 648,118.11 and 221,733.14 is: 332,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,947.46 : 648,118.11 = 221,733.14 : x
  2. Step 2: Convert to fraction form
    431,947.46/648,118.11 = 221,733.14/x
  3. Step 3: Cross multiply
    431,947.46x = 648,118.11 × 221,733.14
  4. Step 4: Simplify right side
    431,947.46x = 143,709,263,621.17
  5. Step 5: Solve for x
    x = 143,709,263,621.17/431,947.46
  6. Step 6: Final answer
    x = 332,700.80

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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.