Home / 389,949.64-584,924.46-140,631.64

Finding the Fourth Proportional to 389,949.64, 584,924.46 and 140,631.64

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Solution

The fourth proportional to 389,949.64, 584,924.46 and 140,631.64 is: 210,947.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,949.64 : 584,924.46 = 140,631.64 : x
  2. Step 2: Convert to fraction form
    389,949.64/584,924.46 = 140,631.64/x
  3. Step 3: Cross multiply
    389,949.64x = 584,924.46 × 140,631.64
  4. Step 4: Simplify right side
    389,949.64x = 82,258,886,085.91
  5. Step 5: Solve for x
    x = 82,258,886,085.91/389,949.64
  6. Step 6: Final answer
    x = 210,947.46

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Similar ratio
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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.