Home / 247,639.37-371,307.26-105,403.65

Finding the Fourth Proportional to 247,639.37, 371,307.26 and 105,403.65

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Solution

The fourth proportional to 247,639.37, 371,307.26 and 105,403.65 is: 158,040.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,639.37 : 371,307.26 = 105,403.65 : x
  2. Step 2: Convert to fraction form
    247,639.37/371,307.26 = 105,403.65/x
  3. Step 3: Cross multiply
    247,639.37x = 371,307.26 × 105,403.65
  4. Step 4: Simplify right side
    247,639.37x = 39,137,139,346.61
  5. Step 5: Solve for x
    x = 39,137,139,346.61/247,639.37
  6. Step 6: Final answer
    x = 158,040.86

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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.