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Finding the Fourth Proportional to 242,891.10, 364,336.65 and 137,915.10

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Solution

The fourth proportional to 242,891.10, 364,336.65 and 137,915.10 is: 206,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,891.10 : 364,336.65 = 137,915.10 : x
  2. Step 2: Convert to fraction form
    242,891.10/364,336.65 = 137,915.10/x
  3. Step 3: Cross multiply
    242,891.10x = 364,336.65 × 137,915.10
  4. Step 4: Simplify right side
    242,891.10x = 50,247,525,518.42
  5. Step 5: Solve for x
    x = 50,247,525,518.42/242,891.10
  6. Step 6: Final answer
    x = 206,872.65

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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.