Home / 305,788.18-422,001.72-169,822.75

Finding the Fourth Proportional to 305,788.18, 422,001.72 and 169,822.75

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Solution

The fourth proportional to 305,788.18, 422,001.72 and 169,822.75 is: 234,363.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,788.18 : 422,001.72 = 169,822.75 : x
  2. Step 2: Convert to fraction form
    305,788.18/422,001.72 = 169,822.75/x
  3. Step 3: Cross multiply
    305,788.18x = 422,001.72 × 169,822.75
  4. Step 4: Simplify right side
    305,788.18x = 71,665,492,595.13
  5. Step 5: Solve for x
    x = 71,665,492,595.13/305,788.18
  6. Step 6: Final answer
    x = 234,363.19

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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.