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Finding the Fourth Proportional to 252,597.13, 348,582.36 and 139,419.88

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Solution

The fourth proportional to 252,597.13, 348,582.36 and 139,419.88 is: 192,398.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,597.13 : 348,582.36 = 139,419.88 : x
  2. Step 2: Convert to fraction form
    252,597.13/348,582.36 = 139,419.88/x
  3. Step 3: Cross multiply
    252,597.13x = 348,582.36 × 139,419.88
  4. Step 4: Simplify right side
    252,597.13x = 48,599,310,801.32
  5. Step 5: Solve for x
    x = 48,599,310,801.32/252,597.13
  6. Step 6: Final answer
    x = 192,398.51

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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.