Home / 300,193.38-450,290.03-142,335.72

Finding the Fourth Proportional to 300,193.38, 450,290.03 and 142,335.72

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Solution

The fourth proportional to 300,193.38, 450,290.03 and 142,335.72 is: 213,503.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,193.38 : 450,290.03 = 142,335.72 : x
  2. Step 2: Convert to fraction form
    300,193.38/450,290.03 = 142,335.72/x
  3. Step 3: Cross multiply
    300,193.38x = 450,290.03 × 142,335.72
  4. Step 4: Simplify right side
    300,193.38x = 64,092,354,917.19
  5. Step 5: Solve for x
    x = 64,092,354,917.19/300,193.38
  6. Step 6: Final answer
    x = 213,503.56

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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.