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Finding the Fourth Proportional to 284,709.58, 392,959.29 and 236,916.34

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Solution

The fourth proportional to 284,709.58, 392,959.29 and 236,916.34 is: 326,994.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,709.58 : 392,959.29 = 236,916.34 : x
  2. Step 2: Convert to fraction form
    284,709.58/392,959.29 = 236,916.34/x
  3. Step 3: Cross multiply
    284,709.58x = 392,959.29 × 236,916.34
  4. Step 4: Simplify right side
    284,709.58x = 93,098,476,755.80
  5. Step 5: Solve for x
    x = 93,098,476,755.80/284,709.58
  6. Step 6: Final answer
    x = 326,994.54

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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.