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Finding the Fourth Proportional to 222,009.96, 306,401.81 and 145,593.35

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Solution

The fourth proportional to 222,009.96, 306,401.81 and 145,593.35 is: 200,937.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,009.96 : 306,401.81 = 145,593.35 : x
  2. Step 2: Convert to fraction form
    222,009.96/306,401.81 = 145,593.35/x
  3. Step 3: Cross multiply
    222,009.96x = 306,401.81 × 145,593.35
  4. Step 4: Simplify right side
    222,009.96x = 44,610,063,703.99
  5. Step 5: Solve for x
    x = 44,610,063,703.99/222,009.96
  6. Step 6: Final answer
    x = 200,937.22

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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.