Home / 262,621.60-393,932.40-75,639.20

Finding the Fourth Proportional to 262,621.60, 393,932.40 and 75,639.20

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Solution

The fourth proportional to 262,621.60, 393,932.40 and 75,639.20 is: 113,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,621.60 : 393,932.40 = 75,639.20 : x
  2. Step 2: Convert to fraction form
    262,621.60/393,932.40 = 75,639.20/x
  3. Step 3: Cross multiply
    262,621.60x = 393,932.40 × 75,639.20
  4. Step 4: Simplify right side
    262,621.60x = 29,796,731,590.08
  5. Step 5: Solve for x
    x = 29,796,731,590.08/262,621.60
  6. Step 6: Final answer
    x = 113,458.80

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1.5x scale

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.