Home / 397,926.83-549,142.35-216,640.02

Finding the Fourth Proportional to 397,926.83, 549,142.35 and 216,640.02

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Solution

The fourth proportional to 397,926.83, 549,142.35 and 216,640.02 is: 298,965.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,926.83 : 549,142.35 = 216,640.02 : x
  2. Step 2: Convert to fraction form
    397,926.83/549,142.35 = 216,640.02/x
  3. Step 3: Cross multiply
    397,926.83x = 549,142.35 × 216,640.02
  4. Step 4: Simplify right side
    397,926.83x = 118,966,209,686.85
  5. Step 5: Solve for x
    x = 118,966,209,686.85/397,926.83
  6. Step 6: Final answer
    x = 298,965.04

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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.