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Finding the Fourth Proportional to 202,574.30, 279,550.90 and 111,929.90

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Solution

The fourth proportional to 202,574.30, 279,550.90 and 111,929.90 is: 154,462.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,574.30 : 279,550.90 = 111,929.90 : x
  2. Step 2: Convert to fraction form
    202,574.30/279,550.90 = 111,929.90/x
  3. Step 3: Cross multiply
    202,574.30x = 279,550.90 × 111,929.90
  4. Step 4: Simplify right side
    202,574.30x = 31,290,104,281.91
  5. Step 5: Solve for x
    x = 31,290,104,281.91/202,574.30
  6. Step 6: Final answer
    x = 154,462.36

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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.