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Finding the Fourth Proportional to 374,490, 561,735 and 111,834

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Solution

The fourth proportional to 374,490, 561,735 and 111,834 is: 167,751

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,490 : 561,735 = 111,834 : x
  2. Step 2: Convert to fraction form
    374,490/561,735 = 111,834/x
  3. Step 3: Cross multiply
    374,490x = 561,735 × 111,834
  4. Step 4: Simplify right side
    374,490x = 62,821,071,990
  5. Step 5: Solve for x
    x = 62,821,071,990/374,490
  6. Step 6: Final answer
    x = 167,751

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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.