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Finding the Fourth Proportional to 202,498.37, 279,445.99 and 111,860.66

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Solution

The fourth proportional to 202,498.37, 279,445.99 and 111,860.66 is: 154,366.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,498.37 : 279,445.99 = 111,860.66 : x
  2. Step 2: Convert to fraction form
    202,498.37/279,445.99 = 111,860.66/x
  3. Step 3: Cross multiply
    202,498.37x = 279,445.99 × 111,860.66
  4. Step 4: Simplify right side
    202,498.37x = 31,259,012,875.75
  5. Step 5: Solve for x
    x = 31,259,012,875.75/202,498.37
  6. Step 6: Final answer
    x = 154,366.74

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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.