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Finding the Fourth Proportional to 213,555.29, 294,780.51 and 122,947.37

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Solution

The fourth proportional to 213,555.29, 294,780.51 and 122,947.37 is: 169,710.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,555.29 : 294,780.51 = 122,947.37 : x
  2. Step 2: Convert to fraction form
    213,555.29/294,780.51 = 122,947.37/x
  3. Step 3: Cross multiply
    213,555.29x = 294,780.51 × 122,947.37
  4. Step 4: Simplify right side
    213,555.29x = 36,242,488,431.76
  5. Step 5: Solve for x
    x = 36,242,488,431.76/213,555.29
  6. Step 6: Final answer
    x = 169,710.09

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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.