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Finding the Fourth Proportional to 257,792.49, 355,979.61 and 161,161.52

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Solution

The fourth proportional to 257,792.49, 355,979.61 and 161,161.52 is: 222,544.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,792.49 : 355,979.61 = 161,161.52 : x
  2. Step 2: Convert to fraction form
    257,792.49/355,979.61 = 161,161.52/x
  3. Step 3: Cross multiply
    257,792.49x = 355,979.61 × 161,161.52
  4. Step 4: Simplify right side
    257,792.49x = 57,370,213,256.71
  5. Step 5: Solve for x
    x = 57,370,213,256.71/257,792.49
  6. Step 6: Final answer
    x = 222,544.16

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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.