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Finding the Fourth Proportional to 507,355.88, 700,156.26 and 306,113

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Solution

The fourth proportional to 507,355.88, 700,156.26 and 306,113 is: 422,439.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,355.88 : 700,156.26 = 306,113 : x
  2. Step 2: Convert to fraction form
    507,355.88/700,156.26 = 306,113/x
  3. Step 3: Cross multiply
    507,355.88x = 700,156.26 × 306,113
  4. Step 4: Simplify right side
    507,355.88x = 214,326,933,217.38
  5. Step 5: Solve for x
    x = 214,326,933,217.38/507,355.88
  6. Step 6: Final answer
    x = 422,439.04

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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.