Home / 380,522.28-570,734.10-143,834.16

Finding the Fourth Proportional to 380,522.28, 570,734.10 and 143,834.16

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Solution

The fourth proportional to 380,522.28, 570,734.10 and 143,834.16 is: 215,732.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,522.28 : 570,734.10 = 143,834.16 : x
  2. Step 2: Convert to fraction form
    380,522.28/570,734.10 = 143,834.16/x
  3. Step 3: Cross multiply
    380,522.28x = 570,734.10 × 143,834.16
  4. Step 4: Simplify right side
    380,522.28x = 82,091,059,856.86
  5. Step 5: Solve for x
    x = 82,091,059,856.86/380,522.28
  6. Step 6: Final answer
    x = 215,732.60

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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.