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Finding the Fourth Proportional to 374,450.70, 561,678.45 and 149,829.90

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Solution

The fourth proportional to 374,450.70, 561,678.45 and 149,829.90 is: 224,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,450.70 : 561,678.45 = 149,829.90 : x
  2. Step 2: Convert to fraction form
    374,450.70/561,678.45 = 149,829.90/x
  3. Step 3: Cross multiply
    374,450.70x = 561,678.45 × 149,829.90
  4. Step 4: Simplify right side
    374,450.70x = 84,156,225,995.66
  5. Step 5: Solve for x
    x = 84,156,225,995.66/374,450.70
  6. Step 6: Final answer
    x = 224,745.81

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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.