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Finding the Fourth Proportional to 507,538.08, 700,372.20 and 281,167.20

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Solution

The fourth proportional to 507,538.08, 700,372.20 and 281,167.20 is: 387,993.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,538.08 : 700,372.20 = 281,167.20 : x
  2. Step 2: Convert to fraction form
    507,538.08/700,372.20 = 281,167.20/x
  3. Step 3: Cross multiply
    507,538.08x = 700,372.20 × 281,167.20
  4. Step 4: Simplify right side
    507,538.08x = 196,921,690,431.84
  5. Step 5: Solve for x
    x = 196,921,690,431.84/507,538.08
  6. Step 6: Final answer
    x = 387,993.92

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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.