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Finding the Fourth Proportional to 310,301.67, 465,452.53 and 99,939.60

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Solution

The fourth proportional to 310,301.67, 465,452.53 and 99,939.60 is: 149,909.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,301.67 : 465,452.53 = 99,939.60 : x
  2. Step 2: Convert to fraction form
    310,301.67/465,452.53 = 99,939.60/x
  3. Step 3: Cross multiply
    310,301.67x = 465,452.53 × 99,939.60
  4. Step 4: Simplify right side
    310,301.67x = 46,517,139,167.49
  5. Step 5: Solve for x
    x = 46,517,139,167.49/310,301.67
  6. Step 6: Final answer
    x = 149,909.41

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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.