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Finding the Fourth Proportional to 315,650.23, 435,594.43 and 172,410.23

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Solution

The fourth proportional to 315,650.23, 435,594.43 and 172,410.23 is: 237,924.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,650.23 : 435,594.43 = 172,410.23 : x
  2. Step 2: Convert to fraction form
    315,650.23/435,594.43 = 172,410.23/x
  3. Step 3: Cross multiply
    315,650.23x = 435,594.43 × 172,410.23
  4. Step 4: Simplify right side
    315,650.23x = 75,100,935,863.02
  5. Step 5: Solve for x
    x = 75,100,935,863.02/315,650.23
  6. Step 6: Final answer
    x = 237,924.54

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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.