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Finding the Fourth Proportional to 221,259.74, 331,798.10 and 69,406.17

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Solution

The fourth proportional to 221,259.74, 331,798.10 and 69,406.17 is: 104,080.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,259.74 : 331,798.10 = 69,406.17 : x
  2. Step 2: Convert to fraction form
    221,259.74/331,798.10 = 69,406.17/x
  3. Step 3: Cross multiply
    221,259.74x = 331,798.10 × 69,406.17
  4. Step 4: Simplify right side
    221,259.74x = 23,028,835,334.28
  5. Step 5: Solve for x
    x = 23,028,835,334.28/221,259.74
  6. Step 6: Final answer
    x = 104,080.55

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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.