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Finding the Fourth Proportional to 374,408, 561,612 and 111,752

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Solution

The fourth proportional to 374,408, 561,612 and 111,752 is: 167,628

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,408 : 561,612 = 111,752 : x
  2. Step 2: Convert to fraction form
    374,408/561,612 = 111,752/x
  3. Step 3: Cross multiply
    374,408x = 561,612 × 111,752
  4. Step 4: Simplify right side
    374,408x = 62,761,264,224
  5. Step 5: Solve for x
    x = 62,761,264,224/374,408
  6. Step 6: Final answer
    x = 167,628

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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.