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Finding the Fourth Proportional to 236,379.64, 354,572.55 and 78,608.08

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Solution

The fourth proportional to 236,379.64, 354,572.55 and 78,608.08 is: 117,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,379.64 : 354,572.55 = 78,608.08 : x
  2. Step 2: Convert to fraction form
    236,379.64/354,572.55 = 78,608.08/x
  3. Step 3: Cross multiply
    236,379.64x = 354,572.55 × 78,608.08
  4. Step 4: Simplify right side
    236,379.64x = 27,872,267,376.20
  5. Step 5: Solve for x
    x = 27,872,267,376.20/236,379.64
  6. Step 6: Final answer
    x = 117,913.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.