Home / 278,401.83-384,195.60-151,077.46

Finding the Fourth Proportional to 278,401.83, 384,195.60 and 151,077.46

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Solution

The fourth proportional to 278,401.83, 384,195.60 and 151,077.46 is: 208,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,401.83 : 384,195.60 = 151,077.46 : x
  2. Step 2: Convert to fraction form
    278,401.83/384,195.60 = 151,077.46/x
  3. Step 3: Cross multiply
    278,401.83x = 384,195.60 × 151,077.46
  4. Step 4: Simplify right side
    278,401.83x = 58,043,295,391.18
  5. Step 5: Solve for x
    x = 58,043,295,391.18/278,401.83
  6. Step 6: Final answer
    x = 208,487.48

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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.