Home / 287,575.12-396,855.28-166,788

Finding the Fourth Proportional to 287,575.12, 396,855.28 and 166,788

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Solution

The fourth proportional to 287,575.12, 396,855.28 and 166,788 is: 230,168.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,575.12 : 396,855.28 = 166,788 : x
  2. Step 2: Convert to fraction form
    287,575.12/396,855.28 = 166,788/x
  3. Step 3: Cross multiply
    287,575.12x = 396,855.28 × 166,788
  4. Step 4: Simplify right side
    287,575.12x = 66,190,698,440.64
  5. Step 5: Solve for x
    x = 66,190,698,440.64/287,575.12
  6. Step 6: Final answer
    x = 230,168.38

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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.