Home / 262,479.20-393,705.04-75,483.36

Finding the Fourth Proportional to 262,479.20, 393,705.04 and 75,483.36

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Solution

The fourth proportional to 262,479.20, 393,705.04 and 75,483.36 is: 113,221.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,479.20 : 393,705.04 = 75,483.36 : x
  2. Step 2: Convert to fraction form
    262,479.20/393,705.04 = 75,483.36/x
  3. Step 3: Cross multiply
    262,479.20x = 393,705.04 × 75,483.36
  4. Step 4: Simplify right side
    262,479.20x = 29,718,179,268.13
  5. Step 5: Solve for x
    x = 29,718,179,268.13/262,479.20
  6. Step 6: Final answer
    x = 113,221.08

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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.