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Finding the Fourth Proportional to 163,646.40, 245,469.60 and 52,838.40

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Solution

The fourth proportional to 163,646.40, 245,469.60 and 52,838.40 is: 79,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,646.40 : 245,469.60 = 52,838.40 : x
  2. Step 2: Convert to fraction form
    163,646.40/245,469.60 = 52,838.40/x
  3. Step 3: Cross multiply
    163,646.40x = 245,469.60 × 52,838.40
  4. Step 4: Simplify right side
    163,646.40x = 12,970,220,912.64
  5. Step 5: Solve for x
    x = 12,970,220,912.64/163,646.40
  6. Step 6: Final answer
    x = 79,257.60

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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.