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Finding the Fourth Proportional to 384,356.59, 530,371.86 and 223,180.22

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Solution

The fourth proportional to 384,356.59, 530,371.86 and 223,180.22 is: 307,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,356.59 : 530,371.86 = 223,180.22 : x
  2. Step 2: Convert to fraction form
    384,356.59/530,371.86 = 223,180.22/x
  3. Step 3: Cross multiply
    384,356.59x = 530,371.86 × 223,180.22
  4. Step 4: Simplify right side
    384,356.59x = 118,368,508,396.61
  5. Step 5: Solve for x
    x = 118,368,508,396.61/384,356.59
  6. Step 6: Final answer
    x = 307,965.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.