Home / 287,669.88-396,968.04-160,341.12

Finding the Fourth Proportional to 287,669.88, 396,968.04 and 160,341.12

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Solution

The fourth proportional to 287,669.88, 396,968.04 and 160,341.12 is: 221,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,669.88 : 396,968.04 = 160,341.12 : x
  2. Step 2: Convert to fraction form
    287,669.88/396,968.04 = 160,341.12/x
  3. Step 3: Cross multiply
    287,669.88x = 396,968.04 × 160,341.12
  4. Step 4: Simplify right side
    287,669.88x = 63,650,300,137.80
  5. Step 5: Solve for x
    x = 63,650,300,137.80/287,669.88
  6. Step 6: Final answer
    x = 221,261.61

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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.