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Finding the Fourth Proportional to 288,927.87, 398,710.81 and 159,866.58

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Solution

The fourth proportional to 288,927.87, 398,710.81 and 159,866.58 is: 220,610.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,927.87 : 398,710.81 = 159,866.58 : x
  2. Step 2: Convert to fraction form
    288,927.87/398,710.81 = 159,866.58/x
  3. Step 3: Cross multiply
    288,927.87x = 398,710.81 × 159,866.58
  4. Step 4: Simplify right side
    288,927.87x = 63,740,533,603.73
  5. Step 5: Solve for x
    x = 63,740,533,603.73/288,927.87
  6. Step 6: Final answer
    x = 220,610.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.