Home / 280,740.02-387,460.73-178,732.89

Finding the Fourth Proportional to 280,740.02, 387,460.73 and 178,732.89

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Solution

The fourth proportional to 280,740.02, 387,460.73 and 178,732.89 is: 246,676.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,740.02 : 387,460.73 = 178,732.89 : x
  2. Step 2: Convert to fraction form
    280,740.02/387,460.73 = 178,732.89/x
  3. Step 3: Cross multiply
    280,740.02x = 387,460.73 × 178,732.89
  4. Step 4: Simplify right side
    280,740.02x = 69,251,976,481.24
  5. Step 5: Solve for x
    x = 69,251,976,481.24/280,740.02
  6. Step 6: Final answer
    x = 246,676.54

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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.