Home / 398,054.20-549,301.75-216,764.73

Finding the Fourth Proportional to 398,054.20, 549,301.75 and 216,764.73

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Solution

The fourth proportional to 398,054.20, 549,301.75 and 216,764.73 is: 299,128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,054.20 : 549,301.75 = 216,764.73 : x
  2. Step 2: Convert to fraction form
    398,054.20/549,301.75 = 216,764.73/x
  3. Step 3: Cross multiply
    398,054.20x = 549,301.75 × 216,764.73
  4. Step 4: Simplify right side
    398,054.20x = 119,069,245,527.28
  5. Step 5: Solve for x
    x = 119,069,245,527.28/398,054.20
  6. Step 6: Final answer
    x = 299,128.22

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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.