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Finding the Fourth Proportional to 202,335.42, 279,223.86 and 111,689.73

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Solution

The fourth proportional to 202,335.42, 279,223.86 and 111,689.73 is: 154,132.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,335.42 : 279,223.86 = 111,689.73 : x
  2. Step 2: Convert to fraction form
    202,335.42/279,223.86 = 111,689.73/x
  3. Step 3: Cross multiply
    202,335.42x = 279,223.86 × 111,689.73
  4. Step 4: Simplify right side
    202,335.42x = 31,186,437,532.96
  5. Step 5: Solve for x
    x = 31,186,437,532.96/202,335.42
  6. Step 6: Final answer
    x = 154,132.37

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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.