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Finding the Fourth Proportional to 281,869.95, 422,804.91 and 243,806.10

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Solution

The fourth proportional to 281,869.95, 422,804.91 and 243,806.10 is: 365,709.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,869.95 : 422,804.91 = 243,806.10 : x
  2. Step 2: Convert to fraction form
    281,869.95/422,804.91 = 243,806.10/x
  3. Step 3: Cross multiply
    281,869.95x = 422,804.91 × 243,806.10
  4. Step 4: Simplify right side
    281,869.95x = 103,082,416,167.95
  5. Step 5: Solve for x
    x = 103,082,416,167.95/281,869.95
  6. Step 6: Final answer
    x = 365,709.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.