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Finding the Fourth Proportional to 357,979.93, 494,008.29 and 266,508.20

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Solution

The fourth proportional to 357,979.93, 494,008.29 and 266,508.20 is: 367,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,979.93 : 494,008.29 = 266,508.20 : x
  2. Step 2: Convert to fraction form
    357,979.93/494,008.29 = 266,508.20/x
  3. Step 3: Cross multiply
    357,979.93x = 494,008.29 × 266,508.20
  4. Step 4: Simplify right side
    357,979.93x = 131,657,260,748.16
  5. Step 5: Solve for x
    x = 131,657,260,748.16/357,979.93
  6. Step 6: Final answer
    x = 367,778.33

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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.