Home / 455,153.20-682,729.80-155,643.55

Finding the Fourth Proportional to 455,153.20, 682,729.80 and 155,643.55

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Solution

The fourth proportional to 455,153.20, 682,729.80 and 155,643.55 is: 233,465.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,153.20 : 682,729.80 = 155,643.55 : x
  2. Step 2: Convert to fraction form
    455,153.20/682,729.80 = 155,643.55/x
  3. Step 3: Cross multiply
    455,153.20x = 682,729.80 × 155,643.55
  4. Step 4: Simplify right side
    455,153.20x = 106,262,489,762.79
  5. Step 5: Solve for x
    x = 106,262,489,762.79/455,153.20
  6. Step 6: Final answer
    x = 233,465.33

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Similar ratio
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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.