Home / 353,221.21-487,430.43-200,269.69

Finding the Fourth Proportional to 353,221.21, 487,430.43 and 200,269.69

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Solution

The fourth proportional to 353,221.21, 487,430.43 and 200,269.69 is: 276,363.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,221.21 : 487,430.43 = 200,269.69 : x
  2. Step 2: Convert to fraction form
    353,221.21/487,430.43 = 200,269.69/x
  3. Step 3: Cross multiply
    353,221.21x = 487,430.43 × 200,269.69
  4. Step 4: Simplify right side
    353,221.21x = 97,617,541,112.67
  5. Step 5: Solve for x
    x = 97,617,541,112.67/353,221.21
  6. Step 6: Final answer
    x = 276,363.76

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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.