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Finding the Fourth Proportional to 252,661.68, 348,671 and 139,482

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Solution

The fourth proportional to 252,661.68, 348,671 and 139,482 is: 192,483.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,661.68 : 348,671 = 139,482 : x
  2. Step 2: Convert to fraction form
    252,661.68/348,671 = 139,482/x
  3. Step 3: Cross multiply
    252,661.68x = 348,671 × 139,482
  4. Step 4: Simplify right side
    252,661.68x = 48,633,328,422
  5. Step 5: Solve for x
    x = 48,633,328,422/252,661.68
  6. Step 6: Final answer
    x = 192,483.99

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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.