Home / 355,132.52-490,081.02-193,985.72

Finding the Fourth Proportional to 355,132.52, 490,081.02 and 193,985.72

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Solution

The fourth proportional to 355,132.52, 490,081.02 and 193,985.72 is: 267,699.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,132.52 : 490,081.02 = 193,985.72 : x
  2. Step 2: Convert to fraction form
    355,132.52/490,081.02 = 193,985.72/x
  3. Step 3: Cross multiply
    355,132.52x = 490,081.02 × 193,985.72
  4. Step 4: Simplify right side
    355,132.52x = 95,068,719,523.03
  5. Step 5: Solve for x
    x = 95,068,719,523.03/355,132.52
  6. Step 6: Final answer
    x = 267,699.28

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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.