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Finding the Fourth Proportional to 375,345.55, 517,977.08 and 203,264.84

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Solution

The fourth proportional to 375,345.55, 517,977.08 and 203,264.84 is: 280,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,345.55 : 517,977.08 = 203,264.84 : x
  2. Step 2: Convert to fraction form
    375,345.55/517,977.08 = 203,264.84/x
  3. Step 3: Cross multiply
    375,345.55x = 517,977.08 × 203,264.84
  4. Step 4: Simplify right side
    375,345.55x = 105,286,529,330.73
  5. Step 5: Solve for x
    x = 105,286,529,330.73/375,345.55
  6. Step 6: Final answer
    x = 280,505.60

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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.