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Finding the Fourth Proportional to 376,812.60, 520,001.22 and 207,057.66

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Solution

The fourth proportional to 376,812.60, 520,001.22 and 207,057.66 is: 285,739.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,812.60 : 520,001.22 = 207,057.66 : x
  2. Step 2: Convert to fraction form
    376,812.60/520,001.22 = 207,057.66/x
  3. Step 3: Cross multiply
    376,812.60x = 520,001.22 × 207,057.66
  4. Step 4: Simplify right side
    376,812.60x = 107,670,235,810.35
  5. Step 5: Solve for x
    x = 107,670,235,810.35/376,812.60
  6. Step 6: Final answer
    x = 285,739.48

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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.