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Finding the Fourth Proportional to 342,674.38, 514,191.39 and 140,420.62

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Solution

The fourth proportional to 342,674.38, 514,191.39 and 140,420.62 is: 210,704.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,674.38 : 514,191.39 = 140,420.62 : x
  2. Step 2: Convert to fraction form
    342,674.38/514,191.39 = 140,420.62/x
  3. Step 3: Cross multiply
    342,674.38x = 514,191.39 × 140,420.62
  4. Step 4: Simplify right side
    342,674.38x = 72,203,070,509.40
  5. Step 5: Solve for x
    x = 72,203,070,509.40/342,674.38
  6. Step 6: Final answer
    x = 210,704.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.