Home / 217,664.88-300,278.52-145,970.16

Finding the Fourth Proportional to 217,664.88, 300,278.52 and 145,970.16

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Solution

The fourth proportional to 217,664.88, 300,278.52 and 145,970.16 is: 201,372.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,664.88 : 300,278.52 = 145,970.16 : x
  2. Step 2: Convert to fraction form
    217,664.88/300,278.52 = 145,970.16/x
  3. Step 3: Cross multiply
    217,664.88x = 300,278.52 × 145,970.16
  4. Step 4: Simplify right side
    217,664.88x = 43,831,703,608.96
  5. Step 5: Solve for x
    x = 43,831,703,608.96/217,664.88
  6. Step 6: Final answer
    x = 201,372.42

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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.