Home / 285,236.63-393,611.58-156,150.35

Finding the Fourth Proportional to 285,236.63, 393,611.58 and 156,150.35

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Solution

The fourth proportional to 285,236.63, 393,611.58 and 156,150.35 is: 215,479.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,236.63 : 393,611.58 = 156,150.35 : x
  2. Step 2: Convert to fraction form
    285,236.63/393,611.58 = 156,150.35/x
  3. Step 3: Cross multiply
    285,236.63x = 393,611.58 × 156,150.35
  4. Step 4: Simplify right side
    285,236.63x = 61,462,585,200.30
  5. Step 5: Solve for x
    x = 61,462,585,200.30/285,236.63
  6. Step 6: Final answer
    x = 215,479.29

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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.