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Finding the Fourth Proportional to 334,081.80, 501,122.70 and 259,432.20

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Solution

The fourth proportional to 334,081.80, 501,122.70 and 259,432.20 is: 389,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,081.80 : 501,122.70 = 259,432.20 : x
  2. Step 2: Convert to fraction form
    334,081.80/501,122.70 = 259,432.20/x
  3. Step 3: Cross multiply
    334,081.80x = 501,122.70 × 259,432.20
  4. Step 4: Simplify right side
    334,081.80x = 130,007,364,530.94
  5. Step 5: Solve for x
    x = 130,007,364,530.94/334,081.80
  6. Step 6: Final answer
    x = 389,148.30

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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.