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Finding the Fourth Proportional to 376,926.60, 520,160.40 and 207,171.66

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Solution

The fourth proportional to 376,926.60, 520,160.40 and 207,171.66 is: 285,897.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,926.60 : 520,160.40 = 207,171.66 : x
  2. Step 2: Convert to fraction form
    376,926.60/520,160.40 = 207,171.66/x
  3. Step 3: Cross multiply
    376,926.60x = 520,160.40 × 207,171.66
  4. Step 4: Simplify right side
    376,926.60x = 107,762,493,534.26
  5. Step 5: Solve for x
    x = 107,762,493,534.26/376,926.60
  6. Step 6: Final answer
    x = 285,897.82

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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.