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Finding the Fourth Proportional to 202,397.95, 279,303.85 and 111,751.97

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Solution

The fourth proportional to 202,397.95, 279,303.85 and 111,751.97 is: 154,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,397.95 : 279,303.85 = 111,751.97 : x
  2. Step 2: Convert to fraction form
    202,397.95/279,303.85 = 111,751.97/x
  3. Step 3: Cross multiply
    202,397.95x = 279,303.85 × 111,751.97
  4. Step 4: Simplify right side
    202,397.95x = 31,212,754,209.26
  5. Step 5: Solve for x
    x = 31,212,754,209.26/202,397.95
  6. Step 6: Final answer
    x = 154,214.77

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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.