Home / 278,909.58-384,898.23-151,585.20

Finding the Fourth Proportional to 278,909.58, 384,898.23 and 151,585.20

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Solution

The fourth proportional to 278,909.58, 384,898.23 and 151,585.20 is: 209,189.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,909.58 : 384,898.23 = 151,585.20 : x
  2. Step 2: Convert to fraction form
    278,909.58/384,898.23 = 151,585.20/x
  3. Step 3: Cross multiply
    278,909.58x = 384,898.23 × 151,585.20
  4. Step 4: Simplify right side
    278,909.58x = 58,344,875,174.20
  5. Step 5: Solve for x
    x = 58,344,875,174.20/278,909.58
  6. Step 6: Final answer
    x = 209,189.21

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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.