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Finding the Fourth Proportional to 339,113.40, 508,670.10 and 206,254.20

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Solution

The fourth proportional to 339,113.40, 508,670.10 and 206,254.20 is: 309,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,113.40 : 508,670.10 = 206,254.20 : x
  2. Step 2: Convert to fraction form
    339,113.40/508,670.10 = 206,254.20/x
  3. Step 3: Cross multiply
    339,113.40x = 508,670.10 × 206,254.20
  4. Step 4: Simplify right side
    339,113.40x = 104,915,344,539.42
  5. Step 5: Solve for x
    x = 104,915,344,539.42/339,113.40
  6. Step 6: Final answer
    x = 309,381.30

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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.