Home / 287,780.82-397,137.96-160,464.48

Finding the Fourth Proportional to 287,780.82, 397,137.96 and 160,464.48

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Solution

The fourth proportional to 287,780.82, 397,137.96 and 160,464.48 is: 221,441.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,780.82 : 397,137.96 = 160,464.48 : x
  2. Step 2: Convert to fraction form
    287,780.82/397,137.96 = 160,464.48/x
  3. Step 3: Cross multiply
    287,780.82x = 397,137.96 × 160,464.48
  4. Step 4: Simplify right side
    287,780.82x = 63,726,536,239.66
  5. Step 5: Solve for x
    x = 63,726,536,239.66/287,780.82
  6. Step 6: Final answer
    x = 221,441.22

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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.