Home / 278,397.20-384,189.21-151,072.83

Finding the Fourth Proportional to 278,397.20, 384,189.21 and 151,072.83

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Solution

The fourth proportional to 278,397.20, 384,189.21 and 151,072.83 is: 208,481.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,397.20 : 384,189.21 = 151,072.83 : x
  2. Step 2: Convert to fraction form
    278,397.20/384,189.21 = 151,072.83/x
  3. Step 3: Cross multiply
    278,397.20x = 384,189.21 × 151,072.83
  4. Step 4: Simplify right side
    278,397.20x = 58,040,551,210.16
  5. Step 5: Solve for x
    x = 58,040,551,210.16/278,397.20
  6. Step 6: Final answer
    x = 208,481.09

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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.