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Finding the Fourth Proportional to 251,915.72, 377,817.18 and 151,938.20

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Solution

The fourth proportional to 251,915.72, 377,817.18 and 151,938.20 is: 227,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,915.72 : 377,817.18 = 151,938.20 : x
  2. Step 2: Convert to fraction form
    251,915.72/377,817.18 = 151,938.20/x
  3. Step 3: Cross multiply
    251,915.72x = 377,817.18 × 151,938.20
  4. Step 4: Simplify right side
    251,915.72x = 57,404,862,258.28
  5. Step 5: Solve for x
    x = 57,404,862,258.28/251,915.72
  6. Step 6: Final answer
    x = 227,873.28

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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.