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Finding the Fourth Proportional to 235,115, 324,557.98 and 158,737.50

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Solution

The fourth proportional to 235,115, 324,557.98 and 158,737.50 is: 219,124.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,115 : 324,557.98 = 158,737.50 : x
  2. Step 2: Convert to fraction form
    235,115/324,557.98 = 158,737.50/x
  3. Step 3: Cross multiply
    235,115x = 324,557.98 × 158,737.50
  4. Step 4: Simplify right side
    235,115x = 51,519,522,350.25
  5. Step 5: Solve for x
    x = 51,519,522,350.25/235,115
  6. Step 6: Final answer
    x = 219,124.78

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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.