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Finding the Fourth Proportional to 202,488.93, 279,433.40 and 111,850.74

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Solution

The fourth proportional to 202,488.93, 279,433.40 and 111,850.74 is: 154,353.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,488.93 : 279,433.40 = 111,850.74 : x
  2. Step 2: Convert to fraction form
    202,488.93/279,433.40 = 111,850.74/x
  3. Step 3: Cross multiply
    202,488.93x = 279,433.40 × 111,850.74
  4. Step 4: Simplify right side
    202,488.93x = 31,254,832,011.46
  5. Step 5: Solve for x
    x = 31,254,832,011.46/202,488.93
  6. Step 6: Final answer
    x = 154,353.29

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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.