Home / 245,719.40-368,579.10-87,960.20

Finding the Fourth Proportional to 245,719.40, 368,579.10 and 87,960.20

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Solution

The fourth proportional to 245,719.40, 368,579.10 and 87,960.20 is: 131,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,719.40 : 368,579.10 = 87,960.20 : x
  2. Step 2: Convert to fraction form
    245,719.40/368,579.10 = 87,960.20/x
  3. Step 3: Cross multiply
    245,719.40x = 368,579.10 × 87,960.20
  4. Step 4: Simplify right side
    245,719.40x = 32,420,291,351.82
  5. Step 5: Solve for x
    x = 32,420,291,351.82/245,719.40
  6. Step 6: Final answer
    x = 131,940.30

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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.