Home / 454,078.80-680,632.20-154,281.60

Finding the Fourth Proportional to 454,078.80, 680,632.20 and 154,281.60

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Solution

The fourth proportional to 454,078.80, 680,632.20 and 154,281.60 is: 231,257.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,078.80 : 680,632.20 = 154,281.60 : x
  2. Step 2: Convert to fraction form
    454,078.80/680,632.20 = 154,281.60/x
  3. Step 3: Cross multiply
    454,078.80x = 680,632.20 × 154,281.60
  4. Step 4: Simplify right side
    454,078.80x = 105,009,024,827.52
  5. Step 5: Solve for x
    x = 105,009,024,827.52/454,078.80
  6. Step 6: Final answer
    x = 231,257.27

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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.