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Finding the Fourth Proportional to 268,639.52, 370,714.82 and 146,128.03

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Solution

The fourth proportional to 268,639.52, 370,714.82 and 146,128.03 is: 201,652.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,639.52 : 370,714.82 = 146,128.03 : x
  2. Step 2: Convert to fraction form
    268,639.52/370,714.82 = 146,128.03/x
  3. Step 3: Cross multiply
    268,639.52x = 370,714.82 × 146,128.03
  4. Step 4: Simplify right side
    268,639.52x = 54,171,826,338.40
  5. Step 5: Solve for x
    x = 54,171,826,338.40/268,639.52
  6. Step 6: Final answer
    x = 201,652.48

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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.