Home / 455,725.20-683,587.80-140,141.10

Finding the Fourth Proportional to 455,725.20, 683,587.80 and 140,141.10

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Solution

The fourth proportional to 455,725.20, 683,587.80 and 140,141.10 is: 210,211.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,725.20 : 683,587.80 = 140,141.10 : x
  2. Step 2: Convert to fraction form
    455,725.20/683,587.80 = 140,141.10/x
  3. Step 3: Cross multiply
    455,725.20x = 683,587.80 × 140,141.10
  4. Step 4: Simplify right side
    455,725.20x = 95,798,746,238.58
  5. Step 5: Solve for x
    x = 95,798,746,238.58/455,725.20
  6. Step 6: Final answer
    x = 210,211.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.