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Finding the Fourth Proportional to 299,463.40, 448,806.62 and 121,763.56

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Solution

The fourth proportional to 299,463.40, 448,806.62 and 121,763.56 is: 182,487.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,463.40 : 448,806.62 = 121,763.56 : x
  2. Step 2: Convert to fraction form
    299,463.40/448,806.62 = 121,763.56/x
  3. Step 3: Cross multiply
    299,463.40x = 448,806.62 × 121,763.56
  4. Step 4: Simplify right side
    299,463.40x = 54,648,291,802.77
  5. Step 5: Solve for x
    x = 54,648,291,802.77/299,463.40
  6. Step 6: Final answer
    x = 182,487.38

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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.