Home / 280,746.64-387,469.88-178,739.52

Finding the Fourth Proportional to 280,746.64, 387,469.88 and 178,739.52

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Solution

The fourth proportional to 280,746.64, 387,469.88 and 178,739.52 is: 246,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,746.64 : 387,469.88 = 178,739.52 : x
  2. Step 2: Convert to fraction form
    280,746.64/387,469.88 = 178,739.52/x
  3. Step 3: Cross multiply
    280,746.64x = 387,469.88 × 178,739.52
  4. Step 4: Simplify right side
    280,746.64x = 69,256,180,365.66
  5. Step 5: Solve for x
    x = 69,256,180,365.66/280,746.64
  6. Step 6: Final answer
    x = 246,685.70

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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.