Home / 401,289.28-553,779.07-219,997.32

Finding the Fourth Proportional to 401,289.28, 553,779.07 and 219,997.32

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Solution

The fourth proportional to 401,289.28, 553,779.07 and 219,997.32 is: 303,596.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,289.28 : 553,779.07 = 219,997.32 : x
  2. Step 2: Convert to fraction form
    401,289.28/553,779.07 = 219,997.32/x
  3. Step 3: Cross multiply
    401,289.28x = 553,779.07 × 219,997.32
  4. Step 4: Simplify right side
    401,289.28x = 121,829,912,997.92
  5. Step 5: Solve for x
    x = 121,829,912,997.92/401,289.28
  6. Step 6: Final answer
    x = 303,596.23

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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.