Home / 278,973.72-384,980.04-151,651.44

Finding the Fourth Proportional to 278,973.72, 384,980.04 and 151,651.44

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Solution

The fourth proportional to 278,973.72, 384,980.04 and 151,651.44 is: 209,276.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,973.72 : 384,980.04 = 151,651.44 : x
  2. Step 2: Convert to fraction form
    278,973.72/384,980.04 = 151,651.44/x
  3. Step 3: Cross multiply
    278,973.72x = 384,980.04 × 151,651.44
  4. Step 4: Simplify right side
    278,973.72x = 58,382,777,437.26
  5. Step 5: Solve for x
    x = 58,382,777,437.26/278,973.72
  6. Step 6: Final answer
    x = 209,276.98

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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.