Home / 225,615.30-311,490.68-145,182.62

Finding the Fourth Proportional to 225,615.30, 311,490.68 and 145,182.62

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Solution

The fourth proportional to 225,615.30, 311,490.68 and 145,182.62 is: 200,443.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,615.30 : 311,490.68 = 145,182.62 : x
  2. Step 2: Convert to fraction form
    225,615.30/311,490.68 = 145,182.62/x
  3. Step 3: Cross multiply
    225,615.30x = 311,490.68 × 145,182.62
  4. Step 4: Simplify right side
    225,615.30x = 45,223,030,744.62
  5. Step 5: Solve for x
    x = 45,223,030,744.62/225,615.30
  6. Step 6: Final answer
    x = 200,443.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.