Home / 278,344.76-384,115.57-151,020.05

Finding the Fourth Proportional to 278,344.76, 384,115.57 and 151,020.05

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Solution

The fourth proportional to 278,344.76, 384,115.57 and 151,020.05 is: 208,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,344.76 : 384,115.57 = 151,020.05 : x
  2. Step 2: Convert to fraction form
    278,344.76/384,115.57 = 151,020.05/x
  3. Step 3: Cross multiply
    278,344.76x = 384,115.57 × 151,020.05
  4. Step 4: Simplify right side
    278,344.76x = 58,009,150,289.05
  5. Step 5: Solve for x
    x = 58,009,150,289.05/278,344.76
  6. Step 6: Final answer
    x = 208,407.56

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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.