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Finding the Fourth Proportional to 252,325.80, 348,210.18 and 139,147.56

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Solution

The fourth proportional to 252,325.80, 348,210.18 and 139,147.56 is: 192,023.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,325.80 : 348,210.18 = 139,147.56 : x
  2. Step 2: Convert to fraction form
    252,325.80/348,210.18 = 139,147.56/x
  3. Step 3: Cross multiply
    252,325.80x = 348,210.18 × 139,147.56
  4. Step 4: Simplify right side
    252,325.80x = 48,452,596,914.16
  5. Step 5: Solve for x
    x = 48,452,596,914.16/252,325.80
  6. Step 6: Final answer
    x = 192,023.95

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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.