Home / 236,915.42-326,717.10-155,121.62

Finding the Fourth Proportional to 236,915.42, 326,717.10 and 155,121.62

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Solution

The fourth proportional to 236,915.42, 326,717.10 and 155,121.62 is: 213,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,915.42 : 326,717.10 = 155,121.62 : x
  2. Step 2: Convert to fraction form
    236,915.42/326,717.10 = 155,121.62/x
  3. Step 3: Cross multiply
    236,915.42x = 326,717.10 × 155,121.62
  4. Step 4: Simplify right side
    236,915.42x = 50,680,885,833.70
  5. Step 5: Solve for x
    x = 50,680,885,833.70/236,915.42
  6. Step 6: Final answer
    x = 213,919.74

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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.