Home / 380,763.67-571,141.40-156,074.02

Finding the Fourth Proportional to 380,763.67, 571,141.40 and 156,074.02

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Solution

The fourth proportional to 380,763.67, 571,141.40 and 156,074.02 is: 234,109.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,763.67 : 571,141.40 = 156,074.02 : x
  2. Step 2: Convert to fraction form
    380,763.67/571,141.40 = 156,074.02/x
  3. Step 3: Cross multiply
    380,763.67x = 571,141.40 × 156,074.02
  4. Step 4: Simplify right side
    380,763.67x = 89,140,334,286.43
  5. Step 5: Solve for x
    x = 89,140,334,286.43/380,763.67
  6. Step 6: Final answer
    x = 234,109.35

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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.