Home / 320,290.10-480,490.41-130,853.42

Finding the Fourth Proportional to 320,290.10, 480,490.41 and 130,853.42

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Solution

The fourth proportional to 320,290.10, 480,490.41 and 130,853.42 is: 196,302.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,290.10 : 480,490.41 = 130,853.42 : x
  2. Step 2: Convert to fraction form
    320,290.10/480,490.41 = 130,853.42/x
  3. Step 3: Cross multiply
    320,290.10x = 480,490.41 × 130,853.42
  4. Step 4: Simplify right side
    320,290.10x = 62,873,813,425.70
  5. Step 5: Solve for x
    x = 62,873,813,425.70/320,290.10
  6. Step 6: Final answer
    x = 196,302.71

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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.