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Finding the Fourth Proportional to 278,384.54, 384,149.54 and 163,667.88

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Solution

The fourth proportional to 278,384.54, 384,149.54 and 163,667.88 is: 225,849.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,384.54 : 384,149.54 = 163,667.88 : x
  2. Step 2: Convert to fraction form
    278,384.54/384,149.54 = 163,667.88/x
  3. Step 3: Cross multiply
    278,384.54x = 384,149.54 × 163,667.88
  4. Step 4: Simplify right side
    278,384.54x = 62,872,939,996.44
  5. Step 5: Solve for x
    x = 62,872,939,996.44/278,384.54
  6. Step 6: Final answer
    x = 225,849.26

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1.5x scale

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.