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Finding the Fourth Proportional to 342,002.70, 513,004.05 and 230,028.30

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Solution

The fourth proportional to 342,002.70, 513,004.05 and 230,028.30 is: 345,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,002.70 : 513,004.05 = 230,028.30 : x
  2. Step 2: Convert to fraction form
    342,002.70/513,004.05 = 230,028.30/x
  3. Step 3: Cross multiply
    342,002.70x = 513,004.05 × 230,028.30
  4. Step 4: Simplify right side
    342,002.70x = 118,005,449,514.62
  5. Step 5: Solve for x
    x = 118,005,449,514.62/342,002.70
  6. Step 6: Final answer
    x = 345,042.45

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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.