Home / 454,290.40-681,435.60-155,108.80

Finding the Fourth Proportional to 454,290.40, 681,435.60 and 155,108.80

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Solution

The fourth proportional to 454,290.40, 681,435.60 and 155,108.80 is: 232,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,290.40 : 681,435.60 = 155,108.80 : x
  2. Step 2: Convert to fraction form
    454,290.40/681,435.60 = 155,108.80/x
  3. Step 3: Cross multiply
    454,290.40x = 681,435.60 × 155,108.80
  4. Step 4: Simplify right side
    454,290.40x = 105,696,658,193.28
  5. Step 5: Solve for x
    x = 105,696,658,193.28/454,290.40
  6. Step 6: Final answer
    x = 232,663.20

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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.