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Finding the Fourth Proportional to 374,278.96, 561,420.87 and 149,658.27

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Solution

The fourth proportional to 374,278.96, 561,420.87 and 149,658.27 is: 224,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,278.96 : 561,420.87 = 149,658.27 : x
  2. Step 2: Convert to fraction form
    374,278.96/561,420.87 = 149,658.27/x
  3. Step 3: Cross multiply
    374,278.96x = 561,420.87 × 149,658.27
  4. Step 4: Simplify right side
    374,278.96x = 84,021,276,146.09
  5. Step 5: Solve for x
    x = 84,021,276,146.09/374,278.96
  6. Step 6: Final answer
    x = 224,488.38

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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.