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Finding the Fourth Proportional to 207,207.79, 310,906.01 and 100,534.16

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Solution

The fourth proportional to 207,207.79, 310,906.01 and 100,534.16 is: 150,847.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,207.79 : 310,906.01 = 100,534.16 : x
  2. Step 2: Convert to fraction form
    207,207.79/310,906.01 = 100,534.16/x
  3. Step 3: Cross multiply
    207,207.79x = 310,906.01 × 100,534.16
  4. Step 4: Simplify right side
    207,207.79x = 31,256,675,582.90
  5. Step 5: Solve for x
    x = 31,256,675,582.90/207,207.79
  6. Step 6: Final answer
    x = 150,847.01

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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.