Home / 325,286.60-487,929.90-125,616.20

Finding the Fourth Proportional to 325,286.60, 487,929.90 and 125,616.20

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Solution

The fourth proportional to 325,286.60, 487,929.90 and 125,616.20 is: 188,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,286.60 : 487,929.90 = 125,616.20 : x
  2. Step 2: Convert to fraction form
    325,286.60/487,929.90 = 125,616.20/x
  3. Step 3: Cross multiply
    325,286.60x = 487,929.90 × 125,616.20
  4. Step 4: Simplify right side
    325,286.60x = 61,291,899,904.38
  5. Step 5: Solve for x
    x = 61,291,899,904.38/325,286.60
  6. Step 6: Final answer
    x = 188,424.30

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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.