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Finding the Fourth Proportional to 315,592.49, 435,519.24 and 172,352.54

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Solution

The fourth proportional to 315,592.49, 435,519.24 and 172,352.54 is: 237,847.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,592.49 : 435,519.24 = 172,352.54 : x
  2. Step 2: Convert to fraction form
    315,592.49/435,519.24 = 172,352.54/x
  3. Step 3: Cross multiply
    315,592.49x = 435,519.24 × 172,352.54
  4. Step 4: Simplify right side
    315,592.49x = 75,062,847,232.87
  5. Step 5: Solve for x
    x = 75,062,847,232.87/315,592.49
  6. Step 6: Final answer
    x = 237,847.38

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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.