Home / 288,456.13-397,988.40-165,942.13

Finding the Fourth Proportional to 288,456.13, 397,988.40 and 165,942.13

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Solution

The fourth proportional to 288,456.13, 397,988.40 and 165,942.13 is: 228,953.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,456.13 : 397,988.40 = 165,942.13 : x
  2. Step 2: Convert to fraction form
    288,456.13/397,988.40 = 165,942.13/x
  3. Step 3: Cross multiply
    288,456.13x = 397,988.40 × 165,942.13
  4. Step 4: Simplify right side
    288,456.13x = 66,043,042,811.29
  5. Step 5: Solve for x
    x = 66,043,042,811.29/288,456.13
  6. Step 6: Final answer
    x = 228,953.51

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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.