Home / 285,275.27-393,684.72-156,211.69

Finding the Fourth Proportional to 285,275.27, 393,684.72 and 156,211.69

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Solution

The fourth proportional to 285,275.27, 393,684.72 and 156,211.69 is: 215,574.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,275.27 : 393,684.72 = 156,211.69 : x
  2. Step 2: Convert to fraction form
    285,275.27/393,684.72 = 156,211.69/x
  3. Step 3: Cross multiply
    285,275.27x = 393,684.72 × 156,211.69
  4. Step 4: Simplify right side
    285,275.27x = 61,498,154,606.53
  5. Step 5: Solve for x
    x = 61,498,154,606.53/285,275.27
  6. Step 6: Final answer
    x = 215,574.78

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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.