Home / 287,971.94-432,040.82-88,321.61

Finding the Fourth Proportional to 287,971.94, 432,040.82 and 88,321.61

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Solution

The fourth proportional to 287,971.94, 432,040.82 and 88,321.61 is: 132,507.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,971.94 : 432,040.82 = 88,321.61 : x
  2. Step 2: Convert to fraction form
    287,971.94/432,040.82 = 88,321.61/x
  3. Step 3: Cross multiply
    287,971.94x = 432,040.82 × 88,321.61
  4. Step 4: Simplify right side
    287,971.94x = 38,158,538,206.31
  5. Step 5: Solve for x
    x = 38,158,538,206.31/287,971.94
  6. Step 6: Final answer
    x = 132,507.84

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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.