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Finding the Fourth Proportional to 339,016.02, 508,327.10 and 128,539.14

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Solution

The fourth proportional to 339,016.02, 508,327.10 and 128,539.14 is: 192,734.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,016.02 : 508,327.10 = 128,539.14 : x
  2. Step 2: Convert to fraction form
    339,016.02/508,327.10 = 128,539.14/x
  3. Step 3: Cross multiply
    339,016.02x = 508,327.10 × 128,539.14
  4. Step 4: Simplify right side
    339,016.02x = 65,339,928,272.69
  5. Step 5: Solve for x
    x = 65,339,928,272.69/339,016.02
  6. Step 6: Final answer
    x = 192,734.04

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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.