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Finding the Fourth Proportional to 319,833.84, 479,667.12 and 95,133.76

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Solution

The fourth proportional to 319,833.84, 479,667.12 and 95,133.76 is: 142,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,833.84 : 479,667.12 = 95,133.76 : x
  2. Step 2: Convert to fraction form
    319,833.84/479,667.12 = 95,133.76/x
  3. Step 3: Cross multiply
    319,833.84x = 479,667.12 × 95,133.76
  4. Step 4: Simplify right side
    319,833.84x = 45,632,536,673.97
  5. Step 5: Solve for x
    x = 45,632,536,673.97/319,833.84
  6. Step 6: Final answer
    x = 142,675.76

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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.