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Finding the Fourth Proportional to 206,999.40, 310,499.10 and 94,806.30

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Solution

The fourth proportional to 206,999.40, 310,499.10 and 94,806.30 is: 142,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,999.40 : 310,499.10 = 94,806.30 : x
  2. Step 2: Convert to fraction form
    206,999.40/310,499.10 = 94,806.30/x
  3. Step 3: Cross multiply
    206,999.40x = 310,499.10 × 94,806.30
  4. Step 4: Simplify right side
    206,999.40x = 29,437,270,824.33
  5. Step 5: Solve for x
    x = 29,437,270,824.33/206,999.40
  6. Step 6: Final answer
    x = 142,209.45

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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.