Home / 398,048.28-549,301.19-225,964.75

Finding the Fourth Proportional to 398,048.28, 549,301.19 and 225,964.75

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Solution

The fourth proportional to 398,048.28, 549,301.19 and 225,964.75 is: 311,828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,048.28 : 549,301.19 = 225,964.75 : x
  2. Step 2: Convert to fraction form
    398,048.28/549,301.19 = 225,964.75/x
  3. Step 3: Cross multiply
    398,048.28x = 549,301.19 × 225,964.75
  4. Step 4: Simplify right side
    398,048.28x = 124,122,703,326.55
  5. Step 5: Solve for x
    x = 124,122,703,326.55/398,048.28
  6. Step 6: Final answer
    x = 311,828.27

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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.