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Finding the Fourth Proportional to 385,244.87, 531,627.69 and 213,158.35

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Solution

The fourth proportional to 385,244.87, 531,627.69 and 213,158.35 is: 294,152.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,244.87 : 531,627.69 = 213,158.35 : x
  2. Step 2: Convert to fraction form
    385,244.87/531,627.69 = 213,158.35/x
  3. Step 3: Cross multiply
    385,244.87x = 531,627.69 × 213,158.35
  4. Step 4: Simplify right side
    385,244.87x = 113,320,881,214.71
  5. Step 5: Solve for x
    x = 113,320,881,214.71/385,244.87
  6. Step 6: Final answer
    x = 294,152.86

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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.