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Finding the Fourth Proportional to 336,889.72, 505,332.96 and 137,162.76

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Solution

The fourth proportional to 336,889.72, 505,332.96 and 137,162.76 is: 205,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,889.72 : 505,332.96 = 137,162.76 : x
  2. Step 2: Convert to fraction form
    336,889.72/505,332.96 = 137,162.76/x
  3. Step 3: Cross multiply
    336,889.72x = 505,332.96 × 137,162.76
  4. Step 4: Simplify right side
    336,889.72x = 69,312,863,512.57
  5. Step 5: Solve for x
    x = 69,312,863,512.57/336,889.72
  6. Step 6: Final answer
    x = 205,743.48

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1.5x scale

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.