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Finding the Fourth Proportional to 376,874.10, 520,086.24 and 207,108.21

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Solution

The fourth proportional to 376,874.10, 520,086.24 and 207,108.21 is: 285,809.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,874.10 : 520,086.24 = 207,108.21 : x
  2. Step 2: Convert to fraction form
    376,874.10/520,086.24 = 207,108.21/x
  3. Step 3: Cross multiply
    376,874.10x = 520,086.24 × 207,108.21
  4. Step 4: Simplify right side
    376,874.10x = 107,714,130,212.03
  5. Step 5: Solve for x
    x = 107,714,130,212.03/376,874.10
  6. Step 6: Final answer
    x = 285,809.32

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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.