Home / 200,841.32-277,182.88-128,310.55

Finding the Fourth Proportional to 200,841.32, 277,182.88 and 128,310.55

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Solution

The fourth proportional to 200,841.32, 277,182.88 and 128,310.55 is: 177,082.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,841.32 : 277,182.88 = 128,310.55 : x
  2. Step 2: Convert to fraction form
    200,841.32/277,182.88 = 128,310.55/x
  3. Step 3: Cross multiply
    200,841.32x = 277,182.88 × 128,310.55
  4. Step 4: Simplify right side
    200,841.32x = 35,565,486,769.65
  5. Step 5: Solve for x
    x = 35,565,486,769.65/200,841.32
  6. Step 6: Final answer
    x = 177,082.52

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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.