Home / 398,468.06-549,886.34-217,180.13

Finding the Fourth Proportional to 398,468.06, 549,886.34 and 217,180.13

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Solution

The fourth proportional to 398,468.06, 549,886.34 and 217,180.13 is: 299,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,468.06 : 549,886.34 = 217,180.13 : x
  2. Step 2: Convert to fraction form
    398,468.06/549,886.34 = 217,180.13/x
  3. Step 3: Cross multiply
    398,468.06x = 549,886.34 × 217,180.13
  4. Step 4: Simplify right side
    398,468.06x = 119,424,385,720.52
  5. Step 5: Solve for x
    x = 119,424,385,720.52/398,468.06
  6. Step 6: Final answer
    x = 299,708.81

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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.