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Finding the Fourth Proportional to 202,215.42, 279,058.82 and 111,574.71

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Solution

The fourth proportional to 202,215.42, 279,058.82 and 111,574.71 is: 153,973.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,215.42 : 279,058.82 = 111,574.71 : x
  2. Step 2: Convert to fraction form
    202,215.42/279,058.82 = 111,574.71/x
  3. Step 3: Cross multiply
    202,215.42x = 279,058.82 × 111,574.71
  4. Step 4: Simplify right side
    202,215.42x = 31,135,906,356.57
  5. Step 5: Solve for x
    x = 31,135,906,356.57/202,215.42
  6. Step 6: Final answer
    x = 153,973.95

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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.