Home / 331,650.32-457,213.75-280,457.44

Finding the Fourth Proportional to 331,650.32, 457,213.75 and 280,457.44

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Solution

The fourth proportional to 331,650.32, 457,213.75 and 280,457.44 is: 386,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,650.32 : 457,213.75 = 280,457.44 : x
  2. Step 2: Convert to fraction form
    331,650.32/457,213.75 = 280,457.44/x
  3. Step 3: Cross multiply
    331,650.32x = 457,213.75 × 280,457.44
  4. Step 4: Simplify right side
    331,650.32x = 128,228,996,013.62
  5. Step 5: Solve for x
    x = 128,228,996,013.62/331,650.32
  6. Step 6: Final answer
    x = 386,639.15

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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.