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Finding the Fourth Proportional to 245,302.43, 338,314.78 and 172,946.44

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Solution

The fourth proportional to 245,302.43, 338,314.78 and 172,946.44 is: 238,523.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,302.43 : 338,314.78 = 172,946.44 : x
  2. Step 2: Convert to fraction form
    245,302.43/338,314.78 = 172,946.44/x
  3. Step 3: Cross multiply
    245,302.43x = 338,314.78 × 172,946.44
  4. Step 4: Simplify right side
    245,302.43x = 58,510,336,466.64
  5. Step 5: Solve for x
    x = 58,510,336,466.64/245,302.43
  6. Step 6: Final answer
    x = 238,523.27

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1.5x scale

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.