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Finding the Fourth Proportional to 356,391.25, 534,522.30 and 143,150.56

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Solution

The fourth proportional to 356,391.25, 534,522.30 and 143,150.56 is: 214,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,391.25 : 534,522.30 = 143,150.56 : x
  2. Step 2: Convert to fraction form
    356,391.25/534,522.30 = 143,150.56/x
  3. Step 3: Cross multiply
    356,391.25x = 534,522.30 × 143,150.56
  4. Step 4: Simplify right side
    356,391.25x = 76,517,166,577.49
  5. Step 5: Solve for x
    x = 76,517,166,577.49/356,391.25
  6. Step 6: Final answer
    x = 214,699.90

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1.5x scale

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.