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Finding the Fourth Proportional to 329,845.77, 493,987.61 and 209,472.08

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Solution

The fourth proportional to 329,845.77, 493,987.61 and 209,472.08 is: 313,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,845.77 : 493,987.61 = 209,472.08 : x
  2. Step 2: Convert to fraction form
    329,845.77/493,987.61 = 209,472.08/x
  3. Step 3: Cross multiply
    329,845.77x = 493,987.61 × 209,472.08
  4. Step 4: Simplify right side
    329,845.77x = 103,476,610,214.67
  5. Step 5: Solve for x
    x = 103,476,610,214.67/329,845.77
  6. Step 6: Final answer
    x = 313,712.10

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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.