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Finding the Fourth Proportional to 208,475, 287,726.38 and 132,001.21

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Solution

The fourth proportional to 208,475, 287,726.38 and 132,001.21 is: 182,181.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,475 : 287,726.38 = 132,001.21 : x
  2. Step 2: Convert to fraction form
    208,475/287,726.38 = 132,001.21/x
  3. Step 3: Cross multiply
    208,475x = 287,726.38 × 132,001.21
  4. Step 4: Simplify right side
    208,475x = 37,980,229,200.29
  5. Step 5: Solve for x
    x = 37,980,229,200.29/208,475
  6. Step 6: Final answer
    x = 182,181.22

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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.