Home / 278,493.19-384,319.69-151,167.87

Finding the Fourth Proportional to 278,493.19, 384,319.69 and 151,167.87

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Solution

The fourth proportional to 278,493.19, 384,319.69 and 151,167.87 is: 208,611.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,493.19 : 384,319.69 = 151,167.87 : x
  2. Step 2: Convert to fraction form
    278,493.19/384,319.69 = 151,167.87/x
  3. Step 3: Cross multiply
    278,493.19x = 384,319.69 × 151,167.87
  4. Step 4: Simplify right side
    278,493.19x = 58,096,788,558.44
  5. Step 5: Solve for x
    x = 58,096,788,558.44/278,493.19
  6. Step 6: Final answer
    x = 208,611.17

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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.