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Finding the Fourth Proportional to 315,750.96, 435,713.58 and 172,480.59

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Solution

The fourth proportional to 315,750.96, 435,713.58 and 172,480.59 is: 238,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,750.96 : 435,713.58 = 172,480.59 : x
  2. Step 2: Convert to fraction form
    315,750.96/435,713.58 = 172,480.59/x
  3. Step 3: Cross multiply
    315,750.96x = 435,713.58 × 172,480.59
  4. Step 4: Simplify right side
    315,750.96x = 75,152,135,349.41
  5. Step 5: Solve for x
    x = 75,152,135,349.41/315,750.96
  6. Step 6: Final answer
    x = 238,010.79

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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.