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Finding the Fourth Proportional to 376,855.29, 520,064.40 and 207,089.41

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Solution

The fourth proportional to 376,855.29, 520,064.40 and 207,089.41 is: 285,785.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,855.29 : 520,064.40 = 207,089.41 : x
  2. Step 2: Convert to fraction form
    376,855.29/520,064.40 = 207,089.41/x
  3. Step 3: Cross multiply
    376,855.29x = 520,064.40 × 207,089.41
  4. Step 4: Simplify right side
    376,855.29x = 107,699,829,758.00
  5. Step 5: Solve for x
    x = 107,699,829,758.00/376,855.29
  6. Step 6: Final answer
    x = 285,785.64

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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.