Home / 302,009.13-453,013.70-80,393.13

Finding the Fourth Proportional to 302,009.13, 453,013.70 and 80,393.13

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Solution

The fourth proportional to 302,009.13, 453,013.70 and 80,393.13 is: 120,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,009.13 : 453,013.70 = 80,393.13 : x
  2. Step 2: Convert to fraction form
    302,009.13/453,013.70 = 80,393.13/x
  3. Step 3: Cross multiply
    302,009.13x = 453,013.70 × 80,393.13
  4. Step 4: Simplify right side
    302,009.13x = 36,419,189,275.88
  5. Step 5: Solve for x
    x = 36,419,189,275.88/302,009.13
  6. Step 6: Final answer
    x = 120,589.70

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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.