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Finding the Fourth Proportional to 248,206, 342,543 and 151,401.18

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Solution

The fourth proportional to 248,206, 342,543 and 151,401.18 is: 208,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,206 : 342,543 = 151,401.18 : x
  2. Step 2: Convert to fraction form
    248,206/342,543 = 151,401.18/x
  3. Step 3: Cross multiply
    248,206x = 342,543 × 151,401.18
  4. Step 4: Simplify right side
    248,206x = 51,861,414,400.74
  5. Step 5: Solve for x
    x = 51,861,414,400.74/248,206
  6. Step 6: Final answer
    x = 208,945.05

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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.