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Finding the Fourth Proportional to 245,935.86, 338,676.84 and 213,655.74

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Solution

The fourth proportional to 245,935.86, 338,676.84 and 213,655.74 is: 294,224.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,935.86 : 338,676.84 = 213,655.74 : x
  2. Step 2: Convert to fraction form
    245,935.86/338,676.84 = 213,655.74/x
  3. Step 3: Cross multiply
    245,935.86x = 338,676.84 × 213,655.74
  4. Step 4: Simplify right side
    245,935.86x = 72,360,250,871.06
  5. Step 5: Solve for x
    x = 72,360,250,871.06/245,935.86
  6. Step 6: Final answer
    x = 294,224.07

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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.