Home / 223,391.18-308,282.96-121,416.61

Finding the Fourth Proportional to 223,391.18, 308,282.96 and 121,416.61

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Solution

The fourth proportional to 223,391.18, 308,282.96 and 121,416.61 is: 167,556.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,391.18 : 308,282.96 = 121,416.61 : x
  2. Step 2: Convert to fraction form
    223,391.18/308,282.96 = 121,416.61/x
  3. Step 3: Cross multiply
    223,391.18x = 308,282.96 × 121,416.61
  4. Step 4: Simplify right side
    223,391.18x = 37,430,671,808.39
  5. Step 5: Solve for x
    x = 37,430,671,808.39/223,391.18
  6. Step 6: Final answer
    x = 167,556.62

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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.