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Finding the Fourth Proportional to 251,878.24, 377,858.34 and 74,403.16

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Solution

The fourth proportional to 251,878.24, 377,858.34 and 74,403.16 is: 111,616.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,878.24 : 377,858.34 = 74,403.16 : x
  2. Step 2: Convert to fraction form
    251,878.24/377,858.34 = 74,403.16/x
  3. Step 3: Cross multiply
    251,878.24x = 377,858.34 × 74,403.16
  4. Step 4: Simplify right side
    251,878.24x = 28,113,854,528.35
  5. Step 5: Solve for x
    x = 28,113,854,528.35/251,878.24
  6. Step 6: Final answer
    x = 111,616.85

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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.