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Finding the Fourth Proportional to 169,122.40, 253,683.60 and 161,346.40

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Solution

The fourth proportional to 169,122.40, 253,683.60 and 161,346.40 is: 242,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,122.40 : 253,683.60 = 161,346.40 : x
  2. Step 2: Convert to fraction form
    169,122.40/253,683.60 = 161,346.40/x
  3. Step 3: Cross multiply
    169,122.40x = 253,683.60 × 161,346.40
  4. Step 4: Simplify right side
    169,122.40x = 40,930,935,599.04
  5. Step 5: Solve for x
    x = 40,930,935,599.04/169,122.40
  6. Step 6: Final answer
    x = 242,019.60

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1.5x scale

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.