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Finding the Fourth Proportional to 236,334, 354,424.32 and 78,520.08

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Solution

The fourth proportional to 236,334, 354,424.32 and 78,520.08 is: 117,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,334 : 354,424.32 = 78,520.08 : x
  2. Step 2: Convert to fraction form
    236,334/354,424.32 = 78,520.08/x
  3. Step 3: Cross multiply
    236,334x = 354,424.32 × 78,520.08
  4. Step 4: Simplify right side
    236,334x = 27,829,425,960.35
  5. Step 5: Solve for x
    x = 27,829,425,960.35/236,334
  6. Step 6: Final answer
    x = 117,754.64

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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.