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Finding the Fourth Proportional to 243,247.49, 335,702.28 and 135,838.27

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Solution

The fourth proportional to 243,247.49, 335,702.28 and 135,838.27 is: 187,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,247.49 : 335,702.28 = 135,838.27 : x
  2. Step 2: Convert to fraction form
    243,247.49/335,702.28 = 135,838.27/x
  3. Step 3: Cross multiply
    243,247.49x = 335,702.28 × 135,838.27
  4. Step 4: Simplify right side
    243,247.49x = 45,601,217,879.28
  5. Step 5: Solve for x
    x = 45,601,217,879.28/243,247.49
  6. Step 6: Final answer
    x = 187,468.40

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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.