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Finding the Fourth Proportional to 172,287.78, 258,428.43 and 93,900.84

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Solution

The fourth proportional to 172,287.78, 258,428.43 and 93,900.84 is: 140,849.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,287.78 : 258,428.43 = 93,900.84 : x
  2. Step 2: Convert to fraction form
    172,287.78/258,428.43 = 93,900.84/x
  3. Step 3: Cross multiply
    172,287.78x = 258,428.43 × 93,900.84
  4. Step 4: Simplify right side
    172,287.78x = 24,266,646,656.88
  5. Step 5: Solve for x
    x = 24,266,646,656.88/172,287.78
  6. Step 6: Final answer
    x = 140,849.49

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1.5x scale

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.