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Finding the Fourth Proportional to 248,423.16, 343,224.78 and 173,307

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Solution

The fourth proportional to 248,423.16, 343,224.78 and 173,307 is: 239,443.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,423.16 : 343,224.78 = 173,307 : x
  2. Step 2: Convert to fraction form
    248,423.16/343,224.78 = 173,307/x
  3. Step 3: Cross multiply
    248,423.16x = 343,224.78 × 173,307
  4. Step 4: Simplify right side
    248,423.16x = 59,483,256,947.46
  5. Step 5: Solve for x
    x = 59,483,256,947.46/248,423.16
  6. Step 6: Final answer
    x = 239,443.28

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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.