Home / 225,784.02-311,585.49-123,818.79

Finding the Fourth Proportional to 225,784.02, 311,585.49 and 123,818.79

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Solution

The fourth proportional to 225,784.02, 311,585.49 and 123,818.79 is: 170,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,784.02 : 311,585.49 = 123,818.79 : x
  2. Step 2: Convert to fraction form
    225,784.02/311,585.49 = 123,818.79/x
  3. Step 3: Cross multiply
    225,784.02x = 311,585.49 × 123,818.79
  4. Step 4: Simplify right side
    225,784.02x = 38,580,138,353.36
  5. Step 5: Solve for x
    x = 38,580,138,353.36/225,784.02
  6. Step 6: Final answer
    x = 170,871.87

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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.