Home / 261,276.39-391,637.10-166,207.50

Finding the Fourth Proportional to 261,276.39, 391,637.10 and 166,207.50

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Solution

The fourth proportional to 261,276.39, 391,637.10 and 166,207.50 is: 249,134.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,276.39 : 391,637.10 = 166,207.50 : x
  2. Step 2: Convert to fraction form
    261,276.39/391,637.10 = 166,207.50/x
  3. Step 3: Cross multiply
    261,276.39x = 391,637.10 × 166,207.50
  4. Step 4: Simplify right side
    261,276.39x = 65,093,023,298.25
  5. Step 5: Solve for x
    x = 65,093,023,298.25/261,276.39
  6. Step 6: Final answer
    x = 249,134.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.