Home / 218,082.12-300,900.78-127,386.60

Finding the Fourth Proportional to 218,082.12, 300,900.78 and 127,386.60

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Solution

The fourth proportional to 218,082.12, 300,900.78 and 127,386.60 is: 175,762.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,082.12 : 300,900.78 = 127,386.60 : x
  2. Step 2: Convert to fraction form
    218,082.12/300,900.78 = 127,386.60/x
  3. Step 3: Cross multiply
    218,082.12x = 300,900.78 × 127,386.60
  4. Step 4: Simplify right side
    218,082.12x = 38,330,727,301.55
  5. Step 5: Solve for x
    x = 38,330,727,301.55/218,082.12
  6. Step 6: Final answer
    x = 175,762.81

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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.