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Finding the Fourth Proportional to 252,679.50, 348,697.71 and 139,502.25

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Solution

The fourth proportional to 252,679.50, 348,697.71 and 139,502.25 is: 192,513.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,679.50 : 348,697.71 = 139,502.25 : x
  2. Step 2: Convert to fraction form
    252,679.50/348,697.71 = 139,502.25/x
  3. Step 3: Cross multiply
    252,679.50x = 348,697.71 × 139,502.25
  4. Step 4: Simplify right side
    252,679.50x = 48,644,115,114.85
  5. Step 5: Solve for x
    x = 48,644,115,114.85/252,679.50
  6. Step 6: Final answer
    x = 192,513.11

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1.5x scale

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.