Home / 213,537.30-320,305.95-134,999.70

Finding the Fourth Proportional to 213,537.30, 320,305.95 and 134,999.70

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Solution

The fourth proportional to 213,537.30, 320,305.95 and 134,999.70 is: 202,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,537.30 : 320,305.95 = 134,999.70 : x
  2. Step 2: Convert to fraction form
    213,537.30/320,305.95 = 134,999.70/x
  3. Step 3: Cross multiply
    213,537.30x = 320,305.95 × 134,999.70
  4. Step 4: Simplify right side
    213,537.30x = 43,241,207,158.22
  5. Step 5: Solve for x
    x = 43,241,207,158.22/213,537.30
  6. Step 6: Final answer
    x = 202,499.55

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Similar ratio
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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.