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Finding the Fourth Proportional to 345,569.67, 518,319.45 and 92,817.32

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Solution

The fourth proportional to 345,569.67, 518,319.45 and 92,817.32 is: 139,216.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,569.67 : 518,319.45 = 92,817.32 : x
  2. Step 2: Convert to fraction form
    345,569.67/518,319.45 = 92,817.32/x
  3. Step 3: Cross multiply
    345,569.67x = 518,319.45 × 92,817.32
  4. Step 4: Simplify right side
    345,569.67x = 48,109,019,661.28
  5. Step 5: Solve for x
    x = 48,109,019,661.28/345,569.67
  6. Step 6: Final answer
    x = 139,216.56

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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.