Home / 278,498.09-384,335.27-151,181.88

Finding the Fourth Proportional to 278,498.09, 384,335.27 and 151,181.88

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Solution

The fourth proportional to 278,498.09, 384,335.27 and 151,181.88 is: 208,635.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,498.09 : 384,335.27 = 151,181.88 : x
  2. Step 2: Convert to fraction form
    278,498.09/384,335.27 = 151,181.88/x
  3. Step 3: Cross multiply
    278,498.09x = 384,335.27 × 151,181.88
  4. Step 4: Simplify right side
    278,498.09x = 58,104,527,913.00
  5. Step 5: Solve for x
    x = 58,104,527,913.00/278,498.09
  6. Step 6: Final answer
    x = 208,635.29

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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.