Home / 380,986.95-571,440.33-156,371.16

Finding the Fourth Proportional to 380,986.95, 571,440.33 and 156,371.16

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Solution

The fourth proportional to 380,986.95, 571,440.33 and 156,371.16 is: 234,540.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,986.95 : 571,440.33 = 156,371.16 : x
  2. Step 2: Convert to fraction form
    380,986.95/571,440.33 = 156,371.16/x
  3. Step 3: Cross multiply
    380,986.95x = 571,440.33 × 156,371.16
  4. Step 4: Simplify right side
    380,986.95x = 89,356,787,272.88
  5. Step 5: Solve for x
    x = 89,356,787,272.88/380,986.95
  6. Step 6: Final answer
    x = 234,540.28

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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.