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Finding the Fourth Proportional to 245,852.31, 339,286.65 and 136,956.52

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Solution

The fourth proportional to 245,852.31, 339,286.65 and 136,956.52 is: 189,005.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,852.31 : 339,286.65 = 136,956.52 : x
  2. Step 2: Convert to fraction form
    245,852.31/339,286.65 = 136,956.52/x
  3. Step 3: Cross multiply
    245,852.31x = 339,286.65 × 136,956.52
  4. Step 4: Simplify right side
    245,852.31x = 46,467,518,360.63
  5. Step 5: Solve for x
    x = 46,467,518,360.63/245,852.31
  6. Step 6: Final answer
    x = 189,005.82

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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.