Home / 261,401.60-392,232.12-103,626.56

Finding the Fourth Proportional to 261,401.60, 392,232.12 and 103,626.56

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Solution

The fourth proportional to 261,401.60, 392,232.12 and 103,626.56 is: 155,491.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,401.60 : 392,232.12 = 103,626.56 : x
  2. Step 2: Convert to fraction form
    261,401.60/392,232.12 = 103,626.56/x
  3. Step 3: Cross multiply
    261,401.60x = 392,232.12 × 103,626.56
  4. Step 4: Simplify right side
    261,401.60x = 40,645,665,317.11
  5. Step 5: Solve for x
    x = 40,645,665,317.11/261,401.60
  6. Step 6: Final answer
    x = 155,491.26

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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.