Home / 284,734.79-392,942.23-157,418.58

Finding the Fourth Proportional to 284,734.79, 392,942.23 and 157,418.58

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Solution

The fourth proportional to 284,734.79, 392,942.23 and 157,418.58 is: 217,242.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,734.79 : 392,942.23 = 157,418.58 : x
  2. Step 2: Convert to fraction form
    284,734.79/392,942.23 = 157,418.58/x
  3. Step 3: Cross multiply
    284,734.79x = 392,942.23 × 157,418.58
  4. Step 4: Simplify right side
    284,734.79x = 61,856,408,948.62
  5. Step 5: Solve for x
    x = 61,856,408,948.62/284,734.79
  6. Step 6: Final answer
    x = 217,242.19

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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.