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Finding the Fourth Proportional to 238,076.77, 328,549.96 and 130,656.80

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Solution

The fourth proportional to 238,076.77, 328,549.96 and 130,656.80 is: 180,308.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,076.77 : 328,549.96 = 130,656.80 : x
  2. Step 2: Convert to fraction form
    238,076.77/328,549.96 = 130,656.80/x
  3. Step 3: Cross multiply
    238,076.77x = 328,549.96 × 130,656.80
  4. Step 4: Simplify right side
    238,076.77x = 42,927,286,413.73
  5. Step 5: Solve for x
    x = 42,927,286,413.73/238,076.77
  6. Step 6: Final answer
    x = 180,308.59

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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.