Home / 353,221.32-487,430.60-200,269.80

Finding the Fourth Proportional to 353,221.32, 487,430.60 and 200,269.80

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Solution

The fourth proportional to 353,221.32, 487,430.60 and 200,269.80 is: 276,363.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,221.32 : 487,430.60 = 200,269.80 : x
  2. Step 2: Convert to fraction form
    353,221.32/487,430.60 = 200,269.80/x
  3. Step 3: Cross multiply
    353,221.32x = 487,430.60 × 200,269.80
  4. Step 4: Simplify right side
    353,221.32x = 97,617,628,775.88
  5. Step 5: Solve for x
    x = 97,617,628,775.88/353,221.32
  6. Step 6: Final answer
    x = 276,363.92

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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.