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Finding the Fourth Proportional to 374,304.92, 561,679.74 and 137,813.67

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Solution

The fourth proportional to 374,304.92, 561,679.74 and 137,813.67 is: 206,802.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,304.92 : 561,679.74 = 137,813.67 : x
  2. Step 2: Convert to fraction form
    374,304.92/561,679.74 = 137,813.67/x
  3. Step 3: Cross multiply
    374,304.92x = 561,679.74 × 137,813.67
  4. Step 4: Simplify right side
    374,304.92x = 77,407,146,334.05
  5. Step 5: Solve for x
    x = 77,407,146,334.05/374,304.92
  6. Step 6: Final answer
    x = 206,802.38

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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.