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Finding the Fourth Proportional to 245,819.80, 368,292.30 and 210,827.80

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Solution

The fourth proportional to 245,819.80, 368,292.30 and 210,827.80 is: 315,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,819.80 : 368,292.30 = 210,827.80 : x
  2. Step 2: Convert to fraction form
    245,819.80/368,292.30 = 210,827.80/x
  3. Step 3: Cross multiply
    245,819.80x = 368,292.30 × 210,827.80
  4. Step 4: Simplify right side
    245,819.80x = 77,646,255,365.94
  5. Step 5: Solve for x
    x = 77,646,255,365.94/245,819.80
  6. Step 6: Final answer
    x = 315,866.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.