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Finding the Fourth Proportional to 223,332.75, 308,247.81 and 137,365.65

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Solution

The fourth proportional to 223,332.75, 308,247.81 and 137,365.65 is: 189,594.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,332.75 : 308,247.81 = 137,365.65 : x
  2. Step 2: Convert to fraction form
    223,332.75/308,247.81 = 137,365.65/x
  3. Step 3: Cross multiply
    223,332.75x = 308,247.81 × 137,365.65
  4. Step 4: Simplify right side
    223,332.75x = 42,342,660,781.73
  5. Step 5: Solve for x
    x = 42,342,660,781.73/223,332.75
  6. Step 6: Final answer
    x = 189,594.50

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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.