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Finding the Fourth Proportional to 298,044.87, 411,285.29 and 170,728.66

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Solution

The fourth proportional to 298,044.87, 411,285.29 and 170,728.66 is: 235,596.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,044.87 : 411,285.29 = 170,728.66 : x
  2. Step 2: Convert to fraction form
    298,044.87/411,285.29 = 170,728.66/x
  3. Step 3: Cross multiply
    298,044.87x = 411,285.29 × 170,728.66
  4. Step 4: Simplify right side
    298,044.87x = 70,218,186,866.23
  5. Step 5: Solve for x
    x = 70,218,186,866.23/298,044.87
  6. Step 6: Final answer
    x = 235,596.03

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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.