Home / 201,743.46-278,451.57-153,479.10

Finding the Fourth Proportional to 201,743.46, 278,451.57 and 153,479.10

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Solution

The fourth proportional to 201,743.46, 278,451.57 and 153,479.10 is: 211,835.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,743.46 : 278,451.57 = 153,479.10 : x
  2. Step 2: Convert to fraction form
    201,743.46/278,451.57 = 153,479.10/x
  3. Step 3: Cross multiply
    201,743.46x = 278,451.57 × 153,479.10
  4. Step 4: Simplify right side
    201,743.46x = 42,736,497,976.93
  5. Step 5: Solve for x
    x = 42,736,497,976.93/201,743.46
  6. Step 6: Final answer
    x = 211,835.85

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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.