Home / 398,895.18-598,453.52-221,526.76

Finding the Fourth Proportional to 398,895.18, 598,453.52 and 221,526.76

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Solution

The fourth proportional to 398,895.18, 598,453.52 and 221,526.76 is: 332,351.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,895.18 : 598,453.52 = 221,526.76 : x
  2. Step 2: Convert to fraction form
    398,895.18/598,453.52 = 221,526.76/x
  3. Step 3: Cross multiply
    398,895.18x = 598,453.52 × 221,526.76
  4. Step 4: Simplify right side
    398,895.18x = 132,573,466,692.43
  5. Step 5: Solve for x
    x = 132,573,466,692.43/398,895.18
  6. Step 6: Final answer
    x = 332,351.64

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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.