Home / 287,876.30-397,288.73-167,017.61

Finding the Fourth Proportional to 287,876.30, 397,288.73 and 167,017.61

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Solution

The fourth proportional to 287,876.30, 397,288.73 and 167,017.61 is: 230,495.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,876.30 : 397,288.73 = 167,017.61 : x
  2. Step 2: Convert to fraction form
    287,876.30/397,288.73 = 167,017.61/x
  3. Step 3: Cross multiply
    287,876.30x = 397,288.73 × 167,017.61
  4. Step 4: Simplify right side
    287,876.30x = 66,354,215,575.30
  5. Step 5: Solve for x
    x = 66,354,215,575.30/287,876.30
  6. Step 6: Final answer
    x = 230,495.59

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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.