Home / 287,894.29-397,165.68-166,965.55

Finding the Fourth Proportional to 287,894.29, 397,165.68 and 166,965.55

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Solution

The fourth proportional to 287,894.29, 397,165.68 and 166,965.55 is: 230,337.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,894.29 : 397,165.68 = 166,965.55 : x
  2. Step 2: Convert to fraction form
    287,894.29/397,165.68 = 166,965.55/x
  3. Step 3: Cross multiply
    287,894.29x = 397,165.68 × 166,965.55
  4. Step 4: Simplify right side
    287,894.29x = 66,312,986,202.32
  5. Step 5: Solve for x
    x = 66,312,986,202.32/287,894.29
  6. Step 6: Final answer
    x = 230,337.97

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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.