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Finding the Fourth Proportional to 239,124.92, 329,980.86 and 131,699.48

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Solution

The fourth proportional to 239,124.92, 329,980.86 and 131,699.48 is: 181,738.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,124.92 : 329,980.86 = 131,699.48 : x
  2. Step 2: Convert to fraction form
    239,124.92/329,980.86 = 131,699.48/x
  3. Step 3: Cross multiply
    239,124.92x = 329,980.86 × 131,699.48
  4. Step 4: Simplify right side
    239,124.92x = 43,458,307,671.95
  5. Step 5: Solve for x
    x = 43,458,307,671.95/239,124.92
  6. Step 6: Final answer
    x = 181,738.93

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1.5x scale

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.