Home / 389,976.08-584,964.30-140,658.08

Finding the Fourth Proportional to 389,976.08, 584,964.30 and 140,658.08

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Solution

The fourth proportional to 389,976.08, 584,964.30 and 140,658.08 is: 210,987.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,976.08 : 584,964.30 = 140,658.08 : x
  2. Step 2: Convert to fraction form
    389,976.08/584,964.30 = 140,658.08/x
  3. Step 3: Cross multiply
    389,976.08x = 584,964.30 × 140,658.08
  4. Step 4: Simplify right side
    389,976.08x = 82,279,955,306.54
  5. Step 5: Solve for x
    x = 82,279,955,306.54/389,976.08
  6. Step 6: Final answer
    x = 210,987.18

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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.