Home / 217,601.83-300,290.71-122,108.53

Finding the Fourth Proportional to 217,601.83, 300,290.71 and 122,108.53

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Solution

The fourth proportional to 217,601.83, 300,290.71 and 122,108.53 is: 168,509.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,601.83 : 300,290.71 = 122,108.53 : x
  2. Step 2: Convert to fraction form
    217,601.83/300,290.71 = 122,108.53/x
  3. Step 3: Cross multiply
    217,601.83x = 300,290.71 × 122,108.53
  4. Step 4: Simplify right side
    217,601.83x = 36,668,055,124.76
  5. Step 5: Solve for x
    x = 36,668,055,124.76/217,601.83
  6. Step 6: Final answer
    x = 168,509.87

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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.