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Finding the Fourth Proportional to 303,531.36, 418,915.52 and 169,404

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Solution

The fourth proportional to 303,531.36, 418,915.52 and 169,404 is: 233,801.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,531.36 : 418,915.52 = 169,404 : x
  2. Step 2: Convert to fraction form
    303,531.36/418,915.52 = 169,404/x
  3. Step 3: Cross multiply
    303,531.36x = 418,915.52 × 169,404
  4. Step 4: Simplify right side
    303,531.36x = 70,965,964,750.08
  5. Step 5: Solve for x
    x = 70,965,964,750.08/303,531.36
  6. Step 6: Final answer
    x = 233,801.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.