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Finding the Fourth Proportional to 169,915.20, 254,838.72 and 161,484.72

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Solution

The fourth proportional to 169,915.20, 254,838.72 and 161,484.72 is: 242,194.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,915.20 : 254,838.72 = 161,484.72 : x
  2. Step 2: Convert to fraction form
    169,915.20/254,838.72 = 161,484.72/x
  3. Step 3: Cross multiply
    169,915.20x = 254,838.72 × 161,484.72
  4. Step 4: Simplify right side
    169,915.20x = 41,152,559,344.36
  5. Step 5: Solve for x
    x = 41,152,559,344.36/169,915.20
  6. Step 6: Final answer
    x = 242,194.69

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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.