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Finding the Fourth Proportional to 455,910.80, 683,866.20 and 118,950.80

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Solution

The fourth proportional to 455,910.80, 683,866.20 and 118,950.80 is: 178,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,910.80 : 683,866.20 = 118,950.80 : x
  2. Step 2: Convert to fraction form
    455,910.80/683,866.20 = 118,950.80/x
  3. Step 3: Cross multiply
    455,910.80x = 683,866.20 × 118,950.80
  4. Step 4: Simplify right side
    455,910.80x = 81,346,431,582.96
  5. Step 5: Solve for x
    x = 81,346,431,582.96/455,910.80
  6. Step 6: Final answer
    x = 178,426.20

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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.