Home / 398,617.10-550,070.75-226,512.05

Finding the Fourth Proportional to 398,617.10, 550,070.75 and 226,512.05

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Solution

The fourth proportional to 398,617.10, 550,070.75 and 226,512.05 is: 312,574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,617.10 : 550,070.75 = 226,512.05 : x
  2. Step 2: Convert to fraction form
    398,617.10/550,070.75 = 226,512.05/x
  3. Step 3: Cross multiply
    398,617.10x = 550,070.75 × 226,512.05
  4. Step 4: Simplify right side
    398,617.10x = 124,597,649,769.33
  5. Step 5: Solve for x
    x = 124,597,649,769.33/398,617.10
  6. Step 6: Final answer
    x = 312,574.77

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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.