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Finding the Fourth Proportional to 299,009.70, 448,536.15 and 99,468.90

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Solution

The fourth proportional to 299,009.70, 448,536.15 and 99,468.90 is: 149,210.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,009.70 : 448,536.15 = 99,468.90 : x
  2. Step 2: Convert to fraction form
    299,009.70/448,536.15 = 99,468.90/x
  3. Step 3: Cross multiply
    299,009.70x = 448,536.15 × 99,468.90
  4. Step 4: Simplify right side
    299,009.70x = 44,615,397,450.74
  5. Step 5: Solve for x
    x = 44,615,397,450.74/299,009.70
  6. Step 6: Final answer
    x = 149,210.54

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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.