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Finding the Fourth Proportional to 376,827.01, 520,021.15 and 207,072.07

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Solution

The fourth proportional to 376,827.01, 520,021.15 and 207,072.07 is: 285,759.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,827.01 : 520,021.15 = 207,072.07 : x
  2. Step 2: Convert to fraction form
    376,827.01/520,021.15 = 207,072.07/x
  3. Step 3: Cross multiply
    376,827.01x = 520,021.15 × 207,072.07
  4. Step 4: Simplify right side
    376,827.01x = 107,681,855,974.28
  5. Step 5: Solve for x
    x = 107,681,855,974.28/376,827.01
  6. Step 6: Final answer
    x = 285,759.39

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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.