Home / 285,209.33-393,593.52-156,145.64

Finding the Fourth Proportional to 285,209.33, 393,593.52 and 156,145.64

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Solution

The fourth proportional to 285,209.33, 393,593.52 and 156,145.64 is: 215,483.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,209.33 : 393,593.52 = 156,145.64 : x
  2. Step 2: Convert to fraction form
    285,209.33/393,593.52 = 156,145.64/x
  3. Step 3: Cross multiply
    285,209.33x = 393,593.52 × 156,145.64
  4. Step 4: Simplify right side
    285,209.33x = 61,457,910,112.29
  5. Step 5: Solve for x
    x = 61,457,910,112.29/285,209.33
  6. Step 6: Final answer
    x = 215,483.52

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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.