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Finding the Fourth Proportional to 376,002.76, 518,880.98 and 206,235.68

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Solution

The fourth proportional to 376,002.76, 518,880.98 and 206,235.68 is: 284,603.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,002.76 : 518,880.98 = 206,235.68 : x
  2. Step 2: Convert to fraction form
    376,002.76/518,880.98 = 206,235.68/x
  3. Step 3: Cross multiply
    376,002.76x = 518,880.98 × 206,235.68
  4. Step 4: Simplify right side
    376,002.76x = 107,011,771,749.37
  5. Step 5: Solve for x
    x = 107,011,771,749.37/376,002.76
  6. Step 6: Final answer
    x = 284,603.69

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Double scale
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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.