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Finding the Fourth Proportional to 205,361.40, 307,710.90 and 116,350.20

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Solution

The fourth proportional to 205,361.40, 307,710.90 and 116,350.20 is: 174,337.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,361.40 : 307,710.90 = 116,350.20 : x
  2. Step 2: Convert to fraction form
    205,361.40/307,710.90 = 116,350.20/x
  3. Step 3: Cross multiply
    205,361.40x = 307,710.90 × 116,350.20
  4. Step 4: Simplify right side
    205,361.40x = 35,802,224,757.18
  5. Step 5: Solve for x
    x = 35,802,224,757.18/205,361.40
  6. Step 6: Final answer
    x = 174,337.65

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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.