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Finding the Fourth Proportional to 403,029.96, 556,181.28 and 221,737.92

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Solution

The fourth proportional to 403,029.96, 556,181.28 and 221,737.92 is: 305,998.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,029.96 : 556,181.28 = 221,737.92 : x
  2. Step 2: Convert to fraction form
    403,029.96/556,181.28 = 221,737.92/x
  3. Step 3: Cross multiply
    403,029.96x = 556,181.28 × 221,737.92
  4. Step 4: Simplify right side
    403,029.96x = 123,326,480,170.14
  5. Step 5: Solve for x
    x = 123,326,480,170.14/403,029.96
  6. Step 6: Final answer
    x = 305,998.29

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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.