Home / 280,149.47-386,970.89-226,636.30

Finding the Fourth Proportional to 280,149.47, 386,970.89 and 226,636.30

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Solution

The fourth proportional to 280,149.47, 386,970.89 and 226,636.30 is: 313,053.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,149.47 : 386,970.89 = 226,636.30 : x
  2. Step 2: Convert to fraction form
    280,149.47/386,970.89 = 226,636.30/x
  3. Step 3: Cross multiply
    280,149.47x = 386,970.89 × 226,636.30
  4. Step 4: Simplify right side
    280,149.47x = 87,701,648,616.70
  5. Step 5: Solve for x
    x = 87,701,648,616.70/280,149.47
  6. Step 6: Final answer
    x = 313,053.06

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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.