Home / 280,309.17-386,767.53-178,297.50

Finding the Fourth Proportional to 280,309.17, 386,767.53 and 178,297.50

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Solution

The fourth proportional to 280,309.17, 386,767.53 and 178,297.50 is: 246,012.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,309.17 : 386,767.53 = 178,297.50 : x
  2. Step 2: Convert to fraction form
    280,309.17/386,767.53 = 178,297.50/x
  3. Step 3: Cross multiply
    280,309.17x = 386,767.53 × 178,297.50
  4. Step 4: Simplify right side
    280,309.17x = 68,959,683,680.18
  5. Step 5: Solve for x
    x = 68,959,683,680.18/280,309.17
  6. Step 6: Final answer
    x = 246,012.94

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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.