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Finding the Fourth Proportional to 243,518.94, 365,190.83 and 142,351.56

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Solution

The fourth proportional to 243,518.94, 365,190.83 and 142,351.56 is: 213,476.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,518.94 : 365,190.83 = 142,351.56 : x
  2. Step 2: Convert to fraction form
    243,518.94/365,190.83 = 142,351.56/x
  3. Step 3: Cross multiply
    243,518.94x = 365,190.83 × 142,351.56
  4. Step 4: Simplify right side
    243,518.94x = 51,985,484,170.26
  5. Step 5: Solve for x
    x = 51,985,484,170.26/243,518.94
  6. Step 6: Final answer
    x = 213,476.14

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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.