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Finding the Fourth Proportional to 252,355.34, 348,250.47 and 139,185.38

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Solution

The fourth proportional to 252,355.34, 348,250.47 and 139,185.38 is: 192,075.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,355.34 : 348,250.47 = 139,185.38 : x
  2. Step 2: Convert to fraction form
    252,355.34/348,250.47 = 139,185.38/x
  3. Step 3: Cross multiply
    252,355.34x = 348,250.47 × 139,185.38
  4. Step 4: Simplify right side
    252,355.34x = 48,471,374,002.13
  5. Step 5: Solve for x
    x = 48,471,374,002.13/252,355.34
  6. Step 6: Final answer
    x = 192,075.88

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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.