Home / 217,461.28-300,081.20-120,670.32

Finding the Fourth Proportional to 217,461.28, 300,081.20 and 120,670.32

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Solution

The fourth proportional to 217,461.28, 300,081.20 and 120,670.32 is: 166,516.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,461.28 : 300,081.20 = 120,670.32 : x
  2. Step 2: Convert to fraction form
    217,461.28/300,081.20 = 120,670.32/x
  3. Step 3: Cross multiply
    217,461.28x = 300,081.20 × 120,670.32
  4. Step 4: Simplify right side
    217,461.28x = 36,210,894,429.98
  5. Step 5: Solve for x
    x = 36,210,894,429.98/217,461.28
  6. Step 6: Final answer
    x = 166,516.51

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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.