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Finding the Fourth Proportional to 207,191.10, 310,755.89 and 57,415.77

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Solution

The fourth proportional to 207,191.10, 310,755.89 and 57,415.77 is: 86,115.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,191.10 : 310,755.89 = 57,415.77 : x
  2. Step 2: Convert to fraction form
    207,191.10/310,755.89 = 57,415.77/x
  3. Step 3: Cross multiply
    207,191.10x = 310,755.89 × 57,415.77
  4. Step 4: Simplify right side
    207,191.10x = 17,842,289,723.93
  5. Step 5: Solve for x
    x = 17,842,289,723.93/207,191.10
  6. Step 6: Final answer
    x = 86,115.14

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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.