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Finding the Fourth Proportional to 555,378.12, 832,894.85 and 200,345.81

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Solution

The fourth proportional to 555,378.12, 832,894.85 and 200,345.81 is: 300,456.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,378.12 : 832,894.85 = 200,345.81 : x
  2. Step 2: Convert to fraction form
    555,378.12/832,894.85 = 200,345.81/x
  3. Step 3: Cross multiply
    555,378.12x = 832,894.85 × 200,345.81
  4. Step 4: Simplify right side
    555,378.12x = 166,866,989,704.47
  5. Step 5: Solve for x
    x = 166,866,989,704.47/555,378.12
  6. Step 6: Final answer
    x = 300,456.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.