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Finding the Fourth Proportional to 210,480.84, 290,559.31 and 134,104.66

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Solution

The fourth proportional to 210,480.84, 290,559.31 and 134,104.66 is: 185,125.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,480.84 : 290,559.31 = 134,104.66 : x
  2. Step 2: Convert to fraction form
    210,480.84/290,559.31 = 134,104.66/x
  3. Step 3: Cross multiply
    210,480.84x = 290,559.31 × 134,104.66
  4. Step 4: Simplify right side
    210,480.84x = 38,965,357,477.38
  5. Step 5: Solve for x
    x = 38,965,357,477.38/210,480.84
  6. Step 6: Final answer
    x = 185,125.44

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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.