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Finding the Fourth Proportional to 234,621.52, 351,878.36 and 139,878.52

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Solution

The fourth proportional to 234,621.52, 351,878.36 and 139,878.52 is: 209,785.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,621.52 : 351,878.36 = 139,878.52 : x
  2. Step 2: Convert to fraction form
    234,621.52/351,878.36 = 139,878.52/x
  3. Step 3: Cross multiply
    234,621.52x = 351,878.36 × 139,878.52
  4. Step 4: Simplify right side
    234,621.52x = 49,220,224,216.83
  5. Step 5: Solve for x
    x = 49,220,224,216.83/234,621.52
  6. Step 6: Final answer
    x = 209,785.63

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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.