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Finding the Fourth Proportional to 213,555.04, 294,780.17 and 122,947.11

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Solution

The fourth proportional to 213,555.04, 294,780.17 and 122,947.11 is: 169,709.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,555.04 : 294,780.17 = 122,947.11 : x
  2. Step 2: Convert to fraction form
    213,555.04/294,780.17 = 122,947.11/x
  3. Step 3: Cross multiply
    213,555.04x = 294,780.17 × 122,947.11
  4. Step 4: Simplify right side
    213,555.04x = 36,242,369,372.07
  5. Step 5: Solve for x
    x = 36,242,369,372.07/213,555.04
  6. Step 6: Final answer
    x = 169,709.74

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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.