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Finding the Fourth Proportional to 164,347.20, 246,520.80 and 39,688.20

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Solution

The fourth proportional to 164,347.20, 246,520.80 and 39,688.20 is: 59,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,347.20 : 246,520.80 = 39,688.20 : x
  2. Step 2: Convert to fraction form
    164,347.20/246,520.80 = 39,688.20/x
  3. Step 3: Cross multiply
    164,347.20x = 246,520.80 × 39,688.20
  4. Step 4: Simplify right side
    164,347.20x = 9,783,966,814.56
  5. Step 5: Solve for x
    x = 9,783,966,814.56/164,347.20
  6. Step 6: Final answer
    x = 59,532.30

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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.