Home / 228,943.97-315,942.68-126,985.04

Finding the Fourth Proportional to 228,943.97, 315,942.68 and 126,985.04

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Solution

The fourth proportional to 228,943.97, 315,942.68 and 126,985.04 is: 175,239.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,943.97 : 315,942.68 = 126,985.04 : x
  2. Step 2: Convert to fraction form
    228,943.97/315,942.68 = 126,985.04/x
  3. Step 3: Cross multiply
    228,943.97x = 315,942.68 × 126,985.04
  4. Step 4: Simplify right side
    228,943.97x = 40,119,993,954.34
  5. Step 5: Solve for x
    x = 40,119,993,954.34/228,943.97
  6. Step 6: Final answer
    x = 175,239.36

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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.