Home / 455,764.20-683,646.30-140,220.60

Finding the Fourth Proportional to 455,764.20, 683,646.30 and 140,220.60

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Solution

The fourth proportional to 455,764.20, 683,646.30 and 140,220.60 is: 210,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,764.20 : 683,646.30 = 140,220.60 : x
  2. Step 2: Convert to fraction form
    455,764.20/683,646.30 = 140,220.60/x
  3. Step 3: Cross multiply
    455,764.20x = 683,646.30 × 140,220.60
  4. Step 4: Simplify right side
    455,764.20x = 95,861,294,373.78
  5. Step 5: Solve for x
    x = 95,861,294,373.78/455,764.20
  6. Step 6: Final answer
    x = 210,330.90

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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.