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Finding the Fourth Proportional to 439,335.50, 658,750.91 and 172,950.66

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Solution

The fourth proportional to 439,335.50, 658,750.91 and 172,950.66 is: 259,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,335.50 : 658,750.91 = 172,950.66 : x
  2. Step 2: Convert to fraction form
    439,335.50/658,750.91 = 172,950.66/x
  3. Step 3: Cross multiply
    439,335.50x = 658,750.91 × 172,950.66
  4. Step 4: Simplify right side
    439,335.50x = 113,931,403,795.35
  5. Step 5: Solve for x
    x = 113,931,403,795.35/439,335.50
  6. Step 6: Final answer
    x = 259,326.65

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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.