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Finding the Fourth Proportional to 247,314.99, 371,020.59 and 105,158.64

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Solution

The fourth proportional to 247,314.99, 371,020.59 and 105,158.64 is: 157,758.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,314.99 : 371,020.59 = 105,158.64 : x
  2. Step 2: Convert to fraction form
    247,314.99/371,020.59 = 105,158.64/x
  3. Step 3: Cross multiply
    247,314.99x = 371,020.59 × 105,158.64
  4. Step 4: Simplify right side
    247,314.99x = 39,016,020,656.40
  5. Step 5: Solve for x
    x = 39,016,020,656.40/247,314.99
  6. Step 6: Final answer
    x = 157,758.41

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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.