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Finding the Fourth Proportional to 278,594.68, 384,449.88 and 151,267.36

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Solution

The fourth proportional to 278,594.68, 384,449.88 and 151,267.36 is: 208,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,594.68 : 384,449.88 = 151,267.36 : x
  2. Step 2: Convert to fraction form
    278,594.68/384,449.88 = 151,267.36/x
  3. Step 3: Cross multiply
    278,594.68x = 384,449.88 × 151,267.36
  4. Step 4: Simplify right side
    278,594.68x = 58,154,718,399.92
  5. Step 5: Solve for x
    x = 58,154,718,399.92/278,594.68
  6. Step 6: Final answer
    x = 208,743.10

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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.