Home / 216,836.76-299,247.24-121,342.60

Finding the Fourth Proportional to 216,836.76, 299,247.24 and 121,342.60

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Solution

The fourth proportional to 216,836.76, 299,247.24 and 121,342.60 is: 167,459.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,836.76 : 299,247.24 = 121,342.60 : x
  2. Step 2: Convert to fraction form
    216,836.76/299,247.24 = 121,342.60/x
  3. Step 3: Cross multiply
    216,836.76x = 299,247.24 × 121,342.60
  4. Step 4: Simplify right side
    216,836.76x = 36,311,438,144.42
  5. Step 5: Solve for x
    x = 36,311,438,144.42/216,836.76
  6. Step 6: Final answer
    x = 167,459.79

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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.