Home / 315,528.70-435,447.33-172,302.10

Finding the Fourth Proportional to 315,528.70, 435,447.33 and 172,302.10

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Solution

The fourth proportional to 315,528.70, 435,447.33 and 172,302.10 is: 237,786.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,528.70 : 435,447.33 = 172,302.10 : x
  2. Step 2: Convert to fraction form
    315,528.70/435,447.33 = 172,302.10/x
  3. Step 3: Cross multiply
    315,528.70x = 435,447.33 × 172,302.10
  4. Step 4: Simplify right side
    315,528.70x = 75,028,489,398.39
  5. Step 5: Solve for x
    x = 75,028,489,398.39/315,528.70
  6. Step 6: Final answer
    x = 237,786.58

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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.