Home / 247,558.18-371,385.02-105,400.86

Finding the Fourth Proportional to 247,558.18, 371,385.02 and 105,400.86

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Solution

The fourth proportional to 247,558.18, 371,385.02 and 105,400.86 is: 158,121.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,558.18 : 371,385.02 = 105,400.86 : x
  2. Step 2: Convert to fraction form
    247,558.18/371,385.02 = 105,400.86/x
  3. Step 3: Cross multiply
    247,558.18x = 371,385.02 × 105,400.86
  4. Step 4: Simplify right side
    247,558.18x = 39,144,300,499.12
  5. Step 5: Solve for x
    x = 39,144,300,499.12/247,558.18
  6. Step 6: Final answer
    x = 158,121.62

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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.