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Finding the Fourth Proportional to 287,026.88, 396,061.44 and 159,693.44

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Solution

The fourth proportional to 287,026.88, 396,061.44 and 159,693.44 is: 220,357.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,026.88 : 396,061.44 = 159,693.44 : x
  2. Step 2: Convert to fraction form
    287,026.88/396,061.44 = 159,693.44/x
  3. Step 3: Cross multiply
    287,026.88x = 396,061.44 × 159,693.44
  4. Step 4: Simplify right side
    287,026.88x = 63,248,413,804.95
  5. Step 5: Solve for x
    x = 63,248,413,804.95/287,026.88
  6. Step 6: Final answer
    x = 220,357.11

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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.