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Finding the Fourth Proportional to 517,577.40, 775,904.40 and 201,960.90

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Solution

The fourth proportional to 517,577.40, 775,904.40 and 201,960.90 is: 302,761.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,577.40 : 775,904.40 = 201,960.90 : x
  2. Step 2: Convert to fraction form
    517,577.40/775,904.40 = 201,960.90/x
  3. Step 3: Cross multiply
    517,577.40x = 775,904.40 × 201,960.90
  4. Step 4: Simplify right side
    517,577.40x = 156,702,350,937.96
  5. Step 5: Solve for x
    x = 156,702,350,937.96/517,577.40
  6. Step 6: Final answer
    x = 302,761.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.