Home / 302,111.20-452,648.40-143,999.20

Finding the Fourth Proportional to 302,111.20, 452,648.40 and 143,999.20

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Solution

The fourth proportional to 302,111.20, 452,648.40 and 143,999.20 is: 215,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,111.20 : 452,648.40 = 143,999.20 : x
  2. Step 2: Convert to fraction form
    302,111.20/452,648.40 = 143,999.20/x
  3. Step 3: Cross multiply
    302,111.20x = 452,648.40 × 143,999.20
  4. Step 4: Simplify right side
    302,111.20x = 65,181,007,481.28
  5. Step 5: Solve for x
    x = 65,181,007,481.28/302,111.20
  6. Step 6: Final answer
    x = 215,751.71

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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.