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Finding the Fourth Proportional to 343,852.52, 515,937.50 and 156,921.32

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Solution

The fourth proportional to 343,852.52, 515,937.50 and 156,921.32 is: 235,454.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,852.52 : 515,937.50 = 156,921.32 : x
  2. Step 2: Convert to fraction form
    343,852.52/515,937.50 = 156,921.32/x
  3. Step 3: Cross multiply
    343,852.52x = 515,937.50 × 156,921.32
  4. Step 4: Simplify right side
    343,852.52x = 80,961,593,537.50
  5. Step 5: Solve for x
    x = 80,961,593,537.50/343,852.52
  6. Step 6: Final answer
    x = 235,454.41

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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.