Home / 455,117.10-682,019.55-202,190.55

Finding the Fourth Proportional to 455,117.10, 682,019.55 and 202,190.55

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Solution

The fourth proportional to 455,117.10, 682,019.55 and 202,190.55 is: 302,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,117.10 : 682,019.55 = 202,190.55 : x
  2. Step 2: Convert to fraction form
    455,117.10/682,019.55 = 202,190.55/x
  3. Step 3: Cross multiply
    455,117.10x = 682,019.55 × 202,190.55
  4. Step 4: Simplify right side
    455,117.10x = 137,897,907,925.25
  5. Step 5: Solve for x
    x = 137,897,907,925.25/455,117.10
  6. Step 6: Final answer
    x = 302,994.35

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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.