Home / 278,316.20-384,077.10-150,991.79

Finding the Fourth Proportional to 278,316.20, 384,077.10 and 150,991.79

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Solution

The fourth proportional to 278,316.20, 384,077.10 and 150,991.79 is: 208,369.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,316.20 : 384,077.10 = 150,991.79 : x
  2. Step 2: Convert to fraction form
    278,316.20/384,077.10 = 150,991.79/x
  3. Step 3: Cross multiply
    278,316.20x = 384,077.10 × 150,991.79
  4. Step 4: Simplify right side
    278,316.20x = 57,992,489,787.20
  5. Step 5: Solve for x
    x = 57,992,489,787.20/278,316.20
  6. Step 6: Final answer
    x = 208,369.08

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1.5x scale

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.