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Finding the Fourth Proportional to 163,754.40, 245,631.60 and 161,680.80

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Solution

The fourth proportional to 163,754.40, 245,631.60 and 161,680.80 is: 242,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,754.40 : 245,631.60 = 161,680.80 : x
  2. Step 2: Convert to fraction form
    163,754.40/245,631.60 = 161,680.80/x
  3. Step 3: Cross multiply
    163,754.40x = 245,631.60 × 161,680.80
  4. Step 4: Simplify right side
    163,754.40x = 39,713,913,593.28
  5. Step 5: Solve for x
    x = 39,713,913,593.28/163,754.40
  6. Step 6: Final answer
    x = 242,521.20

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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.