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Finding the Fourth Proportional to 376,980.84, 520,230.50 and 207,213.16

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Solution

The fourth proportional to 376,980.84, 520,230.50 and 207,213.16 is: 285,952.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,980.84 : 520,230.50 = 207,213.16 : x
  2. Step 2: Convert to fraction form
    376,980.84/520,230.50 = 207,213.16/x
  3. Step 3: Cross multiply
    376,980.84x = 520,230.50 × 207,213.16
  4. Step 4: Simplify right side
    376,980.84x = 107,798,605,833.38
  5. Step 5: Solve for x
    x = 107,798,605,833.38/376,980.84
  6. Step 6: Final answer
    x = 285,952.48

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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.