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Finding the Fourth Proportional to 294,483.36, 405,901.80 and 208,331.04

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Solution

The fourth proportional to 294,483.36, 405,901.80 and 208,331.04 is: 287,153.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,483.36 : 405,901.80 = 208,331.04 : x
  2. Step 2: Convert to fraction form
    294,483.36/405,901.80 = 208,331.04/x
  3. Step 3: Cross multiply
    294,483.36x = 405,901.80 × 208,331.04
  4. Step 4: Simplify right side
    294,483.36x = 84,561,944,131.87
  5. Step 5: Solve for x
    x = 84,561,944,131.87/294,483.36
  6. Step 6: Final answer
    x = 287,153.56

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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.