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Finding the Fourth Proportional to 310,593.33, 465,900.42 and 85,934.97

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Solution

The fourth proportional to 310,593.33, 465,900.42 and 85,934.97 is: 128,905.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,593.33 : 465,900.42 = 85,934.97 : x
  2. Step 2: Convert to fraction form
    310,593.33/465,900.42 = 85,934.97/x
  3. Step 3: Cross multiply
    310,593.33x = 465,900.42 × 85,934.97
  4. Step 4: Simplify right side
    310,593.33x = 40,037,138,615.69
  5. Step 5: Solve for x
    x = 40,037,138,615.69/310,593.33
  6. Step 6: Final answer
    x = 128,905.34

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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.