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Finding the Fourth Proportional to 314,236.52, 471,355.76 and 77,579.23

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Solution

The fourth proportional to 314,236.52, 471,355.76 and 77,579.23 is: 116,369.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,236.52 : 471,355.76 = 77,579.23 : x
  2. Step 2: Convert to fraction form
    314,236.52/471,355.76 = 77,579.23/x
  3. Step 3: Cross multiply
    314,236.52x = 471,355.76 × 77,579.23
  4. Step 4: Simplify right side
    314,236.52x = 36,567,415,350.58
  5. Step 5: Solve for x
    x = 36,567,415,350.58/314,236.52
  6. Step 6: Final answer
    x = 116,369.08

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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.