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Finding the Fourth Proportional to 253,409.08, 349,702.50 and 140,238.04

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Solution

The fourth proportional to 253,409.08, 349,702.50 and 140,238.04 is: 193,527.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,409.08 : 349,702.50 = 140,238.04 : x
  2. Step 2: Convert to fraction form
    253,409.08/349,702.50 = 140,238.04/x
  3. Step 3: Cross multiply
    253,409.08x = 349,702.50 × 140,238.04
  4. Step 4: Simplify right side
    253,409.08x = 49,041,593,183.10
  5. Step 5: Solve for x
    x = 49,041,593,183.10/253,409.08
  6. Step 6: Final answer
    x = 193,527.37

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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.