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Finding the Fourth Proportional to 209,379.74, 288,950.49 and 118,739.42

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Solution

The fourth proportional to 209,379.74, 288,950.49 and 118,739.42 is: 163,864.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,379.74 : 288,950.49 = 118,739.42 : x
  2. Step 2: Convert to fraction form
    209,379.74/288,950.49 = 118,739.42/x
  3. Step 3: Cross multiply
    209,379.74x = 288,950.49 × 118,739.42
  4. Step 4: Simplify right side
    209,379.74x = 34,309,813,591.32
  5. Step 5: Solve for x
    x = 34,309,813,591.32/209,379.74
  6. Step 6: Final answer
    x = 163,864.06

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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.