Home / 262,895.20-393,824.40-157,400.80

Finding the Fourth Proportional to 262,895.20, 393,824.40 and 157,400.80

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Solution

The fourth proportional to 262,895.20, 393,824.40 and 157,400.80 is: 235,790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,895.20 : 393,824.40 = 157,400.80 : x
  2. Step 2: Convert to fraction form
    262,895.20/393,824.40 = 157,400.80/x
  3. Step 3: Cross multiply
    262,895.20x = 393,824.40 × 157,400.80
  4. Step 4: Simplify right side
    262,895.20x = 61,988,275,619.52
  5. Step 5: Solve for x
    x = 61,988,275,619.52/262,895.20
  6. Step 6: Final answer
    x = 235,790.82

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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.