Home / 263,472.65-395,271.85-85,979.98

Finding the Fourth Proportional to 263,472.65, 395,271.85 and 85,979.98

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Solution

The fourth proportional to 263,472.65, 395,271.85 and 85,979.98 is: 128,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,472.65 : 395,271.85 = 85,979.98 : x
  2. Step 2: Convert to fraction form
    263,472.65/395,271.85 = 85,979.98/x
  3. Step 3: Cross multiply
    263,472.65x = 395,271.85 × 85,979.98
  4. Step 4: Simplify right side
    263,472.65x = 33,985,465,757.56
  5. Step 5: Solve for x
    x = 33,985,465,757.56/263,472.65
  6. Step 6: Final answer
    x = 128,990.49

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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.