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Finding the Fourth Proportional to 247,745.88, 371,666.51 and 105,588.50

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Solution

The fourth proportional to 247,745.88, 371,666.51 and 105,588.50 is: 158,403.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,745.88 : 371,666.51 = 105,588.50 : x
  2. Step 2: Convert to fraction form
    247,745.88/371,666.51 = 105,588.50/x
  3. Step 3: Cross multiply
    247,745.88x = 371,666.51 × 105,588.50
  4. Step 4: Simplify right side
    247,745.88x = 39,243,706,904.86
  5. Step 5: Solve for x
    x = 39,243,706,904.86/247,745.88
  6. Step 6: Final answer
    x = 158,403.07

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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.