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Finding the Fourth Proportional to 306,704.70, 423,264.87 and 170,744.22

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Solution

The fourth proportional to 306,704.70, 423,264.87 and 170,744.22 is: 235,633.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,704.70 : 423,264.87 = 170,744.22 : x
  2. Step 2: Convert to fraction form
    306,704.70/423,264.87 = 170,744.22/x
  3. Step 3: Cross multiply
    306,704.70x = 423,264.87 × 170,744.22
  4. Step 4: Simplify right side
    306,704.70x = 72,270,030,081.55
  5. Step 5: Solve for x
    x = 72,270,030,081.55/306,704.70
  6. Step 6: Final answer
    x = 235,633.92

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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.