Home / 289,959.27-434,581.96-138,236.28

Finding the Fourth Proportional to 289,959.27, 434,581.96 and 138,236.28

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Solution

The fourth proportional to 289,959.27, 434,581.96 and 138,236.28 is: 207,184.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,959.27 : 434,581.96 = 138,236.28 : x
  2. Step 2: Convert to fraction form
    289,959.27/434,581.96 = 138,236.28/x
  3. Step 3: Cross multiply
    289,959.27x = 434,581.96 × 138,236.28
  4. Step 4: Simplify right side
    289,959.27x = 60,074,990,641.42
  5. Step 5: Solve for x
    x = 60,074,990,641.42/289,959.27
  6. Step 6: Final answer
    x = 207,184.24

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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.