Home / 285,344.72-393,760.01-156,258.14

Finding the Fourth Proportional to 285,344.72, 393,760.01 and 156,258.14

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Solution

The fourth proportional to 285,344.72, 393,760.01 and 156,258.14 is: 215,627.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,344.72 : 393,760.01 = 156,258.14 : x
  2. Step 2: Convert to fraction form
    285,344.72/393,760.01 = 156,258.14/x
  3. Step 3: Cross multiply
    285,344.72x = 393,760.01 × 156,258.14
  4. Step 4: Simplify right side
    285,344.72x = 61,528,204,800.18
  5. Step 5: Solve for x
    x = 61,528,204,800.18/285,344.72
  6. Step 6: Final answer
    x = 215,627.63

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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.