Home / 285,217.32-393,604.58-156,153.65

Finding the Fourth Proportional to 285,217.32, 393,604.58 and 156,153.65

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Solution

The fourth proportional to 285,217.32, 393,604.58 and 156,153.65 is: 215,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,217.32 : 393,604.58 = 156,153.65 : x
  2. Step 2: Convert to fraction form
    285,217.32/393,604.58 = 156,153.65/x
  3. Step 3: Cross multiply
    285,217.32x = 393,604.58 × 156,153.65
  4. Step 4: Simplify right side
    285,217.32x = 61,462,791,823.72
  5. Step 5: Solve for x
    x = 61,462,791,823.72/285,217.32
  6. Step 6: Final answer
    x = 215,494.60

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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.