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Finding the Fourth Proportional to 268,509.78, 370,533.83 and 147,649.95

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Solution

The fourth proportional to 268,509.78, 370,533.83 and 147,649.95 is: 203,751.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,509.78 : 370,533.83 = 147,649.95 : x
  2. Step 2: Convert to fraction form
    268,509.78/370,533.83 = 147,649.95/x
  3. Step 3: Cross multiply
    268,509.78x = 370,533.83 × 147,649.95
  4. Step 4: Simplify right side
    268,509.78x = 54,709,300,734.56
  5. Step 5: Solve for x
    x = 54,709,300,734.56/268,509.78
  6. Step 6: Final answer
    x = 203,751.61

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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.