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Finding the Fourth Proportional to 372,915.89, 559,454.83 and 136,258.19

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Solution

The fourth proportional to 372,915.89, 559,454.83 and 136,258.19 is: 204,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,915.89 : 559,454.83 = 136,258.19 : x
  2. Step 2: Convert to fraction form
    372,915.89/559,454.83 = 136,258.19/x
  3. Step 3: Cross multiply
    372,915.89x = 559,454.83 × 136,258.19
  4. Step 4: Simplify right side
    372,915.89x = 76,230,302,522.56
  5. Step 5: Solve for x
    x = 76,230,302,522.56/372,915.89
  6. Step 6: Final answer
    x = 204,416.88

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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.