Home / 280,735.02-387,453.83-178,727.89

Finding the Fourth Proportional to 280,735.02, 387,453.83 and 178,727.89

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Solution

The fourth proportional to 280,735.02, 387,453.83 and 178,727.89 is: 246,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,735.02 : 387,453.83 = 178,727.89 : x
  2. Step 2: Convert to fraction form
    280,735.02/387,453.83 = 178,727.89/x
  3. Step 3: Cross multiply
    280,735.02x = 387,453.83 × 178,727.89
  4. Step 4: Simplify right side
    280,735.02x = 69,248,805,508.32
  5. Step 5: Solve for x
    x = 69,248,805,508.32/280,735.02
  6. Step 6: Final answer
    x = 246,669.64

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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.