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Finding the Fourth Proportional to 404,477.94, 606,823.84 and 138,237.42

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Solution

The fourth proportional to 404,477.94, 606,823.84 and 138,237.42 is: 207,392.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,477.94 : 606,823.84 = 138,237.42 : x
  2. Step 2: Convert to fraction form
    404,477.94/606,823.84 = 138,237.42/x
  3. Step 3: Cross multiply
    404,477.94x = 606,823.84 × 138,237.42
  4. Step 4: Simplify right side
    404,477.94x = 83,885,762,036.09
  5. Step 5: Solve for x
    x = 83,885,762,036.09/404,477.94
  6. Step 6: Final answer
    x = 207,392.68

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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.