Home / 315,604.68-435,542.04-172,363.50

Finding the Fourth Proportional to 315,604.68, 435,542.04 and 172,363.50

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Solution

The fourth proportional to 315,604.68, 435,542.04 and 172,363.50 is: 237,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,604.68 : 435,542.04 = 172,363.50 : x
  2. Step 2: Convert to fraction form
    315,604.68/435,542.04 = 172,363.50/x
  3. Step 3: Cross multiply
    315,604.68x = 435,542.04 × 172,363.50
  4. Step 4: Simplify right side
    315,604.68x = 75,071,550,411.54
  5. Step 5: Solve for x
    x = 75,071,550,411.54/315,604.68
  6. Step 6: Final answer
    x = 237,865.77

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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.