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Finding the Fourth Proportional to 252,434.84, 348,354.48 and 139,257.56

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Solution

The fourth proportional to 252,434.84, 348,354.48 and 139,257.56 is: 192,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,434.84 : 348,354.48 = 139,257.56 : x
  2. Step 2: Convert to fraction form
    252,434.84/348,354.48 = 139,257.56/x
  3. Step 3: Cross multiply
    252,434.84x = 348,354.48 × 139,257.56
  4. Step 4: Simplify right side
    252,434.84x = 48,510,995,248.54
  5. Step 5: Solve for x
    x = 48,510,995,248.54/252,434.84
  6. Step 6: Final answer
    x = 192,172.34

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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.