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Finding the Fourth Proportional to 380,562.57, 570,908.70 and 131,186.25

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Solution

The fourth proportional to 380,562.57, 570,908.70 and 131,186.25 is: 196,801.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,562.57 : 570,908.70 = 131,186.25 : x
  2. Step 2: Convert to fraction form
    380,562.57/570,908.70 = 131,186.25/x
  3. Step 3: Cross multiply
    380,562.57x = 570,908.70 × 131,186.25
  4. Step 4: Simplify right side
    380,562.57x = 74,895,371,445.38
  5. Step 5: Solve for x
    x = 74,895,371,445.38/380,562.57
  6. Step 6: Final answer
    x = 196,801.73

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1.5x scale

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.