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Finding the Fourth Proportional to 223,967.76, 309,077.33 and 121,993.62

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Solution

The fourth proportional to 223,967.76, 309,077.33 and 121,993.62 is: 168,352.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,967.76 : 309,077.33 = 121,993.62 : x
  2. Step 2: Convert to fraction form
    223,967.76/309,077.33 = 121,993.62/x
  3. Step 3: Cross multiply
    223,967.76x = 309,077.33 × 121,993.62
  4. Step 4: Simplify right side
    223,967.76x = 37,705,462,346.63
  5. Step 5: Solve for x
    x = 37,705,462,346.63/223,967.76
  6. Step 6: Final answer
    x = 168,352.19

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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.