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Finding the Fourth Proportional to 298,010.29, 447,015.31 and 87,648.24

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Solution

The fourth proportional to 298,010.29, 447,015.31 and 87,648.24 is: 131,472.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,010.29 : 447,015.31 = 87,648.24 : x
  2. Step 2: Convert to fraction form
    298,010.29/447,015.31 = 87,648.24/x
  3. Step 3: Cross multiply
    298,010.29x = 447,015.31 × 87,648.24
  4. Step 4: Simplify right side
    298,010.29x = 39,180,105,174.55
  5. Step 5: Solve for x
    x = 39,180,105,174.55/298,010.29
  6. Step 6: Final answer
    x = 131,472.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.