Home / 217,612.66-300,327.04-122,119.74

Finding the Fourth Proportional to 217,612.66, 300,327.04 and 122,119.74

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Solution

The fourth proportional to 217,612.66, 300,327.04 and 122,119.74 is: 168,537.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,612.66 : 300,327.04 = 122,119.74 : x
  2. Step 2: Convert to fraction form
    217,612.66/300,327.04 = 122,119.74/x
  3. Step 3: Cross multiply
    217,612.66x = 300,327.04 × 122,119.74
  4. Step 4: Simplify right side
    217,612.66x = 36,675,860,039.77
  5. Step 5: Solve for x
    x = 36,675,860,039.77/217,612.66
  6. Step 6: Final answer
    x = 168,537.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.