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Finding the Fourth Proportional to 247,385.61, 370,450.40 and 207,299.18

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Solution

The fourth proportional to 247,385.61, 370,450.40 and 207,299.18 is: 310,422.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,385.61 : 370,450.40 = 207,299.18 : x
  2. Step 2: Convert to fraction form
    247,385.61/370,450.40 = 207,299.18/x
  3. Step 3: Cross multiply
    247,385.61x = 370,450.40 × 207,299.18
  4. Step 4: Simplify right side
    247,385.61x = 76,794,064,040.30
  5. Step 5: Solve for x
    x = 76,794,064,040.30/247,385.61
  6. Step 6: Final answer
    x = 310,422.52

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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.