Home / 401,410.26-553,953.76-220,111.38

Finding the Fourth Proportional to 401,410.26, 553,953.76 and 220,111.38

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Solution

The fourth proportional to 401,410.26, 553,953.76 and 220,111.38 is: 303,757.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,410.26 : 553,953.76 = 220,111.38 : x
  2. Step 2: Convert to fraction form
    401,410.26/553,953.76 = 220,111.38/x
  3. Step 3: Cross multiply
    401,410.26x = 553,953.76 × 220,111.38
  4. Step 4: Simplify right side
    401,410.26x = 121,931,526,569.79
  5. Step 5: Solve for x
    x = 121,931,526,569.79/401,410.26
  6. Step 6: Final answer
    x = 303,757.87

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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.