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Finding the Fourth Proportional to 210,376.88, 290,341.10 and 125,493.94

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Solution

The fourth proportional to 210,376.88, 290,341.10 and 125,493.94 is: 173,194.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,376.88 : 290,341.10 = 125,493.94 : x
  2. Step 2: Convert to fraction form
    210,376.88/290,341.10 = 125,493.94/x
  3. Step 3: Cross multiply
    210,376.88x = 290,341.10 × 125,493.94
  4. Step 4: Simplify right side
    210,376.88x = 36,436,048,582.93
  5. Step 5: Solve for x
    x = 36,436,048,582.93/210,376.88
  6. Step 6: Final answer
    x = 173,194.17

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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.