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Finding the Fourth Proportional to 491,967.79, 738,166.11 and 172,348.94

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Solution

The fourth proportional to 491,967.79, 738,166.11 and 172,348.94 is: 258,598.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,967.79 : 738,166.11 = 172,348.94 : x
  2. Step 2: Convert to fraction form
    491,967.79/738,166.11 = 172,348.94/x
  3. Step 3: Cross multiply
    491,967.79x = 738,166.11 × 172,348.94
  4. Step 4: Simplify right side
    491,967.79x = 127,222,148,447.84
  5. Step 5: Solve for x
    x = 127,222,148,447.84/491,967.79
  6. Step 6: Final answer
    x = 258,598.53

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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.