Home / 278,360.66-384,138.78-151,037.30

Finding the Fourth Proportional to 278,360.66, 384,138.78 and 151,037.30

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Solution

The fourth proportional to 278,360.66, 384,138.78 and 151,037.30 is: 208,432.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,360.66 : 384,138.78 = 151,037.30 : x
  2. Step 2: Convert to fraction form
    278,360.66/384,138.78 = 151,037.30/x
  3. Step 3: Cross multiply
    278,360.66x = 384,138.78 × 151,037.30
  4. Step 4: Simplify right side
    278,360.66x = 58,019,284,156.49
  5. Step 5: Solve for x
    x = 58,019,284,156.49/278,360.66
  6. Step 6: Final answer
    x = 208,432.05

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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.