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Finding the Fourth Proportional to 213,081, 294,051.51 and 117,587.70

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Solution

The fourth proportional to 213,081, 294,051.51 and 117,587.70 is: 162,270.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,081 : 294,051.51 = 117,587.70 : x
  2. Step 2: Convert to fraction form
    213,081/294,051.51 = 117,587.70/x
  3. Step 3: Cross multiply
    213,081x = 294,051.51 × 117,587.70
  4. Step 4: Simplify right side
    213,081x = 34,576,840,742.43
  5. Step 5: Solve for x
    x = 34,576,840,742.43/213,081
  6. Step 6: Final answer
    x = 162,270.88

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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.