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Finding the Fourth Proportional to 425,557.08, 638,357.52 and 110,016.72

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Solution

The fourth proportional to 425,557.08, 638,357.52 and 110,016.72 is: 165,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,557.08 : 638,357.52 = 110,016.72 : x
  2. Step 2: Convert to fraction form
    425,557.08/638,357.52 = 110,016.72/x
  3. Step 3: Cross multiply
    425,557.08x = 638,357.52 × 110,016.72
  4. Step 4: Simplify right side
    425,557.08x = 70,230,000,537.73
  5. Step 5: Solve for x
    x = 70,230,000,537.73/425,557.08
  6. Step 6: Final answer
    x = 165,030.74

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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.