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Finding the Fourth Proportional to 499,940.73, 750,021.26 and 144,969.57

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Solution

The fourth proportional to 499,940.73, 750,021.26 and 144,969.57 is: 217,486.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,940.73 : 750,021.26 = 144,969.57 : x
  2. Step 2: Convert to fraction form
    499,940.73/750,021.26 = 144,969.57/x
  3. Step 3: Cross multiply
    499,940.73x = 750,021.26 × 144,969.57
  4. Step 4: Simplify right side
    499,940.73x = 108,730,258,828.21
  5. Step 5: Solve for x
    x = 108,730,258,828.21/499,940.73
  6. Step 6: Final answer
    x = 217,486.30

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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.