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Finding the Fourth Proportional to 298,044.49, 411,284.78 and 170,728.29

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Solution

The fourth proportional to 298,044.49, 411,284.78 and 170,728.29 is: 235,595.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,044.49 : 411,284.78 = 170,728.29 : x
  2. Step 2: Convert to fraction form
    298,044.49/411,284.78 = 170,728.29/x
  3. Step 3: Cross multiply
    298,044.49x = 411,284.78 × 170,728.29
  4. Step 4: Simplify right side
    298,044.49x = 70,217,944,282.36
  5. Step 5: Solve for x
    x = 70,217,944,282.36/298,044.49
  6. Step 6: Final answer
    x = 235,595.51

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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.