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Finding the Fourth Proportional to 339,665.27, 468,759.08 and 282,978.23

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Solution

The fourth proportional to 339,665.27, 468,759.08 and 282,978.23 is: 390,527.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,665.27 : 468,759.08 = 282,978.23 : x
  2. Step 2: Convert to fraction form
    339,665.27/468,759.08 = 282,978.23/x
  3. Step 3: Cross multiply
    339,665.27x = 468,759.08 × 282,978.23
  4. Step 4: Simplify right side
    339,665.27x = 132,648,614,511.84
  5. Step 5: Solve for x
    x = 132,648,614,511.84/339,665.27
  6. Step 6: Final answer
    x = 390,527.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.