Home / 401,059.09-553,452.82-219,767.10

Finding the Fourth Proportional to 401,059.09, 553,452.82 and 219,767.10

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Solution

The fourth proportional to 401,059.09, 553,452.82 and 219,767.10 is: 303,273.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,059.09 : 553,452.82 = 219,767.10 : x
  2. Step 2: Convert to fraction form
    401,059.09/553,452.82 = 219,767.10/x
  3. Step 3: Cross multiply
    401,059.09x = 553,452.82 × 219,767.10
  4. Step 4: Simplify right side
    401,059.09x = 121,630,721,238.22
  5. Step 5: Solve for x
    x = 121,630,721,238.22/401,059.09
  6. Step 6: Final answer
    x = 303,273.82

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1.5x scale

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.