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Finding the Fourth Proportional to 298,860.48, 448,344 and 99,192.96

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Solution

The fourth proportional to 298,860.48, 448,344 and 99,192.96 is: 148,807.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,860.48 : 448,344 = 99,192.96 : x
  2. Step 2: Convert to fraction form
    298,860.48/448,344 = 99,192.96/x
  3. Step 3: Cross multiply
    298,860.48x = 448,344 × 99,192.96
  4. Step 4: Simplify right side
    298,860.48x = 44,472,568,458.24
  5. Step 5: Solve for x
    x = 44,472,568,458.24/298,860.48
  6. Step 6: Final answer
    x = 148,807.12

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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.