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Finding the Fourth Proportional to 401,940.79, 602,127.49 and 223,911.70

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Solution

The fourth proportional to 401,940.79, 602,127.49 and 223,911.70 is: 335,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,940.79 : 602,127.49 = 223,911.70 : x
  2. Step 2: Convert to fraction form
    401,940.79/602,127.49 = 223,911.70/x
  3. Step 3: Cross multiply
    401,940.79x = 602,127.49 × 223,911.70
  4. Step 4: Simplify right side
    401,940.79x = 134,823,389,902.63
  5. Step 5: Solve for x
    x = 134,823,389,902.63/401,940.79
  6. Step 6: Final answer
    x = 335,430.97

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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.