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Finding the Fourth Proportional to 292,571.20, 438,892 and 102,992.20

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Solution

The fourth proportional to 292,571.20, 438,892 and 102,992.20 is: 154,500.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,571.20 : 438,892 = 102,992.20 : x
  2. Step 2: Convert to fraction form
    292,571.20/438,892 = 102,992.20/x
  3. Step 3: Cross multiply
    292,571.20x = 438,892 × 102,992.20
  4. Step 4: Simplify right side
    292,571.20x = 45,202,452,642.40
  5. Step 5: Solve for x
    x = 45,202,452,642.40/292,571.20
  6. Step 6: Final answer
    x = 154,500.69

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