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Finding the Fourth Proportional to 228,081.30, 342,316.35 and 101,915.70

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Solution

The fourth proportional to 228,081.30, 342,316.35 and 101,915.70 is: 152,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,081.30 : 342,316.35 = 101,915.70 : x
  2. Step 2: Convert to fraction form
    228,081.30/342,316.35 = 101,915.70/x
  3. Step 3: Cross multiply
    228,081.30x = 342,316.35 × 101,915.70
  4. Step 4: Simplify right side
    228,081.30x = 34,887,410,431.70
  5. Step 5: Solve for x
    x = 34,887,410,431.70/228,081.30
  6. Step 6: Final answer
    x = 152,960.42

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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.