Home / 425,845.14-638,742.51-159,583.38

Finding the Fourth Proportional to 425,845.14, 638,742.51 and 159,583.38

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Solution

The fourth proportional to 425,845.14, 638,742.51 and 159,583.38 is: 239,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,845.14 : 638,742.51 = 159,583.38 : x
  2. Step 2: Convert to fraction form
    425,845.14/638,742.51 = 159,583.38/x
  3. Step 3: Cross multiply
    425,845.14x = 638,742.51 × 159,583.38
  4. Step 4: Simplify right side
    425,845.14x = 101,932,688,695.48
  5. Step 5: Solve for x
    x = 101,932,688,695.48/425,845.14
  6. Step 6: Final answer
    x = 239,365.63

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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.