Home / 397,899.57-549,108.42-216,616.71

Finding the Fourth Proportional to 397,899.57, 549,108.42 and 216,616.71

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Solution

The fourth proportional to 397,899.57, 549,108.42 and 216,616.71 is: 298,934.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,899.57 : 549,108.42 = 216,616.71 : x
  2. Step 2: Convert to fraction form
    397,899.57/549,108.42 = 216,616.71/x
  3. Step 3: Cross multiply
    397,899.57x = 549,108.42 × 216,616.71
  4. Step 4: Simplify right side
    397,899.57x = 118,946,059,373.70
  5. Step 5: Solve for x
    x = 118,946,059,373.70/397,899.57
  6. Step 6: Final answer
    x = 298,934.88

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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.