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Finding the Fourth Proportional to 403,917.96, 557,404.29 and 220,156.32

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Solution

The fourth proportional to 403,917.96, 557,404.29 and 220,156.32 is: 303,814.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,917.96 : 557,404.29 = 220,156.32 : x
  2. Step 2: Convert to fraction form
    403,917.96/557,404.29 = 220,156.32/x
  3. Step 3: Cross multiply
    403,917.96x = 557,404.29 × 220,156.32
  4. Step 4: Simplify right side
    403,917.96x = 122,716,077,238.61
  5. Step 5: Solve for x
    x = 122,716,077,238.61/403,917.96
  6. Step 6: Final answer
    x = 303,814.36

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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.