Home / 454,234.80-681,424.20-154,743.60

Finding the Fourth Proportional to 454,234.80, 681,424.20 and 154,743.60

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Solution

The fourth proportional to 454,234.80, 681,424.20 and 154,743.60 is: 232,139.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,234.80 : 681,424.20 = 154,743.60 : x
  2. Step 2: Convert to fraction form
    454,234.80/681,424.20 = 154,743.60/x
  3. Step 3: Cross multiply
    454,234.80x = 681,424.20 × 154,743.60
  4. Step 4: Simplify right side
    454,234.80x = 105,446,033,835.12
  5. Step 5: Solve for x
    x = 105,446,033,835.12/454,234.80
  6. Step 6: Final answer
    x = 232,139.93

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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.