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Finding the Fourth Proportional to 164,815.40, 247,223.10 and 40,156.40

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Solution

The fourth proportional to 164,815.40, 247,223.10 and 40,156.40 is: 60,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,815.40 : 247,223.10 = 40,156.40 : x
  2. Step 2: Convert to fraction form
    164,815.40/247,223.10 = 40,156.40/x
  3. Step 3: Cross multiply
    164,815.40x = 247,223.10 × 40,156.40
  4. Step 4: Simplify right side
    164,815.40x = 9,927,589,692.84
  5. Step 5: Solve for x
    x = 9,927,589,692.84/164,815.40
  6. Step 6: Final answer
    x = 60,234.60

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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.