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Finding the Fourth Proportional to 210,999.56, 316,527.13 and 68,794.90

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Solution

The fourth proportional to 210,999.56, 316,527.13 and 68,794.90 is: 103,201.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,999.56 : 316,527.13 = 68,794.90 : x
  2. Step 2: Convert to fraction form
    210,999.56/316,527.13 = 68,794.90/x
  3. Step 3: Cross multiply
    210,999.56x = 316,527.13 × 68,794.90
  4. Step 4: Simplify right side
    210,999.56x = 21,775,452,737.29
  5. Step 5: Solve for x
    x = 21,775,452,737.29/210,999.56
  6. Step 6: Final answer
    x = 103,201.41

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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.