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Finding the Fourth Proportional to 207,160.13, 310,516.94 and 100,317.89

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Solution

The fourth proportional to 207,160.13, 310,516.94 and 100,317.89 is: 150,368.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,160.13 : 310,516.94 = 100,317.89 : x
  2. Step 2: Convert to fraction form
    207,160.13/310,516.94 = 100,317.89/x
  3. Step 3: Cross multiply
    207,160.13x = 310,516.94 × 100,317.89
  4. Step 4: Simplify right side
    207,160.13x = 31,150,405,257.14
  5. Step 5: Solve for x
    x = 31,150,405,257.14/207,160.13
  6. Step 6: Final answer
    x = 150,368.73

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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.