Home / 260,180.59-390,315.38-89,394.11

Finding the Fourth Proportional to 260,180.59, 390,315.38 and 89,394.11

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Solution

The fourth proportional to 260,180.59, 390,315.38 and 89,394.11 is: 134,106.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,180.59 : 390,315.38 = 89,394.11 : x
  2. Step 2: Convert to fraction form
    260,180.59/390,315.38 = 89,394.11/x
  3. Step 3: Cross multiply
    260,180.59x = 390,315.38 × 89,394.11
  4. Step 4: Simplify right side
    260,180.59x = 34,891,895,790.93
  5. Step 5: Solve for x
    x = 34,891,895,790.93/260,180.59
  6. Step 6: Final answer
    x = 134,106.45

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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.