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Finding the Fourth Proportional to 221,998.95, 332,615.70 and 103,427.10

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Solution

The fourth proportional to 221,998.95, 332,615.70 and 103,427.10 is: 154,962.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,998.95 : 332,615.70 = 103,427.10 : x
  2. Step 2: Convert to fraction form
    221,998.95/332,615.70 = 103,427.10/x
  3. Step 3: Cross multiply
    221,998.95x = 332,615.70 × 103,427.10
  4. Step 4: Simplify right side
    221,998.95x = 34,401,477,265.47
  5. Step 5: Solve for x
    x = 34,401,477,265.47/221,998.95
  6. Step 6: Final answer
    x = 154,962.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.