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Finding the Fourth Proportional to 425,804, 638,808.62 and 159,566.84

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Solution

The fourth proportional to 425,804, 638,808.62 and 159,566.84 is: 239,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,804 : 638,808.62 = 159,566.84 : x
  2. Step 2: Convert to fraction form
    425,804/638,808.62 = 159,566.84/x
  3. Step 3: Cross multiply
    425,804x = 638,808.62 × 159,566.84
  4. Step 4: Simplify right side
    425,804x = 101,932,672,858.16
  5. Step 5: Solve for x
    x = 101,932,672,858.16/425,804
  6. Step 6: Final answer
    x = 239,388.72

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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.