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Finding the Fourth Proportional to 313,517.79, 432,647.43 and 170,274.75

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Solution

The fourth proportional to 313,517.79, 432,647.43 and 170,274.75 is: 234,975.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,517.79 : 432,647.43 = 170,274.75 : x
  2. Step 2: Convert to fraction form
    313,517.79/432,647.43 = 170,274.75/x
  3. Step 3: Cross multiply
    313,517.79x = 432,647.43 × 170,274.75
  4. Step 4: Simplify right side
    313,517.79x = 73,668,932,981.39
  5. Step 5: Solve for x
    x = 73,668,932,981.39/313,517.79
  6. Step 6: Final answer
    x = 234,975.29

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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.