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Finding the Fourth Proportional to 268,606.72, 370,659 and 155,446.48

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Solution

The fourth proportional to 268,606.72, 370,659 and 155,446.48 is: 214,505.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,606.72 : 370,659 = 155,446.48 : x
  2. Step 2: Convert to fraction form
    268,606.72/370,659 = 155,446.48/x
  3. Step 3: Cross multiply
    268,606.72x = 370,659 × 155,446.48
  4. Step 4: Simplify right side
    268,606.72x = 57,617,636,830.32
  5. Step 5: Solve for x
    x = 57,617,636,830.32/268,606.72
  6. Step 6: Final answer
    x = 214,505.57

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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.