Home / 278,445.64-384,252.72-151,121.29

Finding the Fourth Proportional to 278,445.64, 384,252.72 and 151,121.29

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Solution

The fourth proportional to 278,445.64, 384,252.72 and 151,121.29 is: 208,546.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,445.64 : 384,252.72 = 151,121.29 : x
  2. Step 2: Convert to fraction form
    278,445.64/384,252.72 = 151,121.29/x
  3. Step 3: Cross multiply
    278,445.64x = 384,252.72 × 151,121.29
  4. Step 4: Simplify right side
    278,445.64x = 58,068,766,732.41
  5. Step 5: Solve for x
    x = 58,068,766,732.41/278,445.64
  6. Step 6: Final answer
    x = 208,546.15

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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.