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Finding the Fourth Proportional to 221,007.44, 304,904.09 and 125,501.15

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Solution

The fourth proportional to 221,007.44, 304,904.09 and 125,501.15 is: 173,142.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,007.44 : 304,904.09 = 125,501.15 : x
  2. Step 2: Convert to fraction form
    221,007.44/304,904.09 = 125,501.15/x
  3. Step 3: Cross multiply
    221,007.44x = 304,904.09 × 125,501.15
  4. Step 4: Simplify right side
    221,007.44x = 38,265,811,782.68
  5. Step 5: Solve for x
    x = 38,265,811,782.68/221,007.44
  6. Step 6: Final answer
    x = 173,142.64

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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.