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Finding the Fourth Proportional to 252,034.20, 378,051.30 and 230,261.40

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Solution

The fourth proportional to 252,034.20, 378,051.30 and 230,261.40 is: 345,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,034.20 : 378,051.30 = 230,261.40 : x
  2. Step 2: Convert to fraction form
    252,034.20/378,051.30 = 230,261.40/x
  3. Step 3: Cross multiply
    252,034.20x = 378,051.30 × 230,261.40
  4. Step 4: Simplify right side
    252,034.20x = 87,050,621,609.82
  5. Step 5: Solve for x
    x = 87,050,621,609.82/252,034.20
  6. Step 6: Final answer
    x = 345,392.10

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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.