Home / 217,340.72-299,944.62-121,853.60

Finding the Fourth Proportional to 217,340.72, 299,944.62 and 121,853.60

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Solution

The fourth proportional to 217,340.72, 299,944.62 and 121,853.60 is: 168,166.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,340.72 : 299,944.62 = 121,853.60 : x
  2. Step 2: Convert to fraction form
    217,340.72/299,944.62 = 121,853.60/x
  3. Step 3: Cross multiply
    217,340.72x = 299,944.62 × 121,853.60
  4. Step 4: Simplify right side
    217,340.72x = 36,549,331,747.63
  5. Step 5: Solve for x
    x = 36,549,331,747.63/217,340.72
  6. Step 6: Final answer
    x = 168,166.06

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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.