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Finding the Fourth Proportional to 310,437.05, 465,266.20 and 132,735.47

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Solution

The fourth proportional to 310,437.05, 465,266.20 and 132,735.47 is: 198,936.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,437.05 : 465,266.20 = 132,735.47 : x
  2. Step 2: Convert to fraction form
    310,437.05/465,266.20 = 132,735.47/x
  3. Step 3: Cross multiply
    310,437.05x = 465,266.20 × 132,735.47
  4. Step 4: Simplify right side
    310,437.05x = 61,757,327,732.11
  5. Step 5: Solve for x
    x = 61,757,327,732.11/310,437.05
  6. Step 6: Final answer
    x = 198,936.72

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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.