Home / 455,220.20-682,830.30-155,710.55

Finding the Fourth Proportional to 455,220.20, 682,830.30 and 155,710.55

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Solution

The fourth proportional to 455,220.20, 682,830.30 and 155,710.55 is: 233,565.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,220.20 : 682,830.30 = 155,710.55 : x
  2. Step 2: Convert to fraction form
    455,220.20/682,830.30 = 155,710.55/x
  3. Step 3: Cross multiply
    455,220.20x = 682,830.30 × 155,710.55
  4. Step 4: Simplify right side
    455,220.20x = 106,323,881,569.67
  5. Step 5: Solve for x
    x = 106,323,881,569.67/455,220.20
  6. Step 6: Final answer
    x = 233,565.83

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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.