Home / 262,335.42-393,459.10-72,815.04

Finding the Fourth Proportional to 262,335.42, 393,459.10 and 72,815.04

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Solution

The fourth proportional to 262,335.42, 393,459.10 and 72,815.04 is: 109,210.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,335.42 : 393,459.10 = 72,815.04 : x
  2. Step 2: Convert to fraction form
    262,335.42/393,459.10 = 72,815.04/x
  3. Step 3: Cross multiply
    262,335.42x = 393,459.10 × 72,815.04
  4. Step 4: Simplify right side
    262,335.42x = 28,649,739,922.83
  5. Step 5: Solve for x
    x = 28,649,739,922.83/262,335.42
  6. Step 6: Final answer
    x = 109,210.34

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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.