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Finding the Fourth Proportional to 341,741.70, 512,609.85 and 89,021.70

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Solution

The fourth proportional to 341,741.70, 512,609.85 and 89,021.70 is: 133,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,741.70 : 512,609.85 = 89,021.70 : x
  2. Step 2: Convert to fraction form
    341,741.70/512,609.85 = 89,021.70/x
  3. Step 3: Cross multiply
    341,741.70x = 512,609.85 × 89,021.70
  4. Step 4: Simplify right side
    341,741.70x = 45,633,400,283.75
  5. Step 5: Solve for x
    x = 45,633,400,283.75/341,741.70
  6. Step 6: Final answer
    x = 133,531.85

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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.