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Finding the Fourth Proportional to 202,647.56, 279,668.11 and 112,001.57

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Solution

The fourth proportional to 202,647.56, 279,668.11 and 112,001.57 is: 154,570.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,647.56 : 279,668.11 = 112,001.57 : x
  2. Step 2: Convert to fraction form
    202,647.56/279,668.11 = 112,001.57/x
  3. Step 3: Cross multiply
    202,647.56x = 279,668.11 × 112,001.57
  4. Step 4: Simplify right side
    202,647.56x = 31,323,267,398.93
  5. Step 5: Solve for x
    x = 31,323,267,398.93/202,647.56
  6. Step 6: Final answer
    x = 154,570.17

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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.