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Finding the Fourth Proportional to 538,518.53, 807,775.28 and 159,441.56

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Solution

The fourth proportional to 538,518.53, 807,775.28 and 159,441.56 is: 239,161.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,518.53 : 807,775.28 = 159,441.56 : x
  2. Step 2: Convert to fraction form
    538,518.53/807,775.28 = 159,441.56/x
  3. Step 3: Cross multiply
    538,518.53x = 807,775.28 × 159,441.56
  4. Step 4: Simplify right side
    538,518.53x = 128,792,955,004.21
  5. Step 5: Solve for x
    x = 128,792,955,004.21/538,518.53
  6. Step 6: Final answer
    x = 239,161.60

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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.