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Finding the Fourth Proportional to 207,004.68, 310,428.22 and 135,908.30

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Solution

The fourth proportional to 207,004.68, 310,428.22 and 135,908.30 is: 203,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,004.68 : 310,428.22 = 135,908.30 : x
  2. Step 2: Convert to fraction form
    207,004.68/310,428.22 = 135,908.30/x
  3. Step 3: Cross multiply
    207,004.68x = 310,428.22 × 135,908.30
  4. Step 4: Simplify right side
    207,004.68x = 42,189,771,652.23
  5. Step 5: Solve for x
    x = 42,189,771,652.23/207,004.68
  6. Step 6: Final answer
    x = 203,810.71

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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.