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Finding the Fourth Proportional to 315,401.06, 435,188.49 and 181,239.14

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Solution

The fourth proportional to 315,401.06, 435,188.49 and 181,239.14 is: 250,072.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,401.06 : 435,188.49 = 181,239.14 : x
  2. Step 2: Convert to fraction form
    315,401.06/435,188.49 = 181,239.14/x
  3. Step 3: Cross multiply
    315,401.06x = 435,188.49 × 181,239.14
  4. Step 4: Simplify right side
    315,401.06x = 78,873,187,665.50
  5. Step 5: Solve for x
    x = 78,873,187,665.50/315,401.06
  6. Step 6: Final answer
    x = 250,072.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.