Home / 218,417.60-327,626.40-85,302.20

Finding the Fourth Proportional to 218,417.60, 327,626.40 and 85,302.20

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Solution

The fourth proportional to 218,417.60, 327,626.40 and 85,302.20 is: 127,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,417.60 : 327,626.40 = 85,302.20 : x
  2. Step 2: Convert to fraction form
    218,417.60/327,626.40 = 85,302.20/x
  3. Step 3: Cross multiply
    218,417.60x = 327,626.40 × 85,302.20
  4. Step 4: Simplify right side
    218,417.60x = 27,947,252,698.08
  5. Step 5: Solve for x
    x = 27,947,252,698.08/218,417.60
  6. Step 6: Final answer
    x = 127,953.30

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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.