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Finding the Fourth Proportional to 318,326.93, 477,625.40 and 149,843.51

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Solution

The fourth proportional to 318,326.93, 477,625.40 and 149,843.51 is: 224,828.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,326.93 : 477,625.40 = 149,843.51 : x
  2. Step 2: Convert to fraction form
    318,326.93/477,625.40 = 149,843.51/x
  3. Step 3: Cross multiply
    318,326.93x = 477,625.40 × 149,843.51
  4. Step 4: Simplify right side
    318,326.93x = 71,569,063,263.81
  5. Step 5: Solve for x
    x = 71,569,063,263.81/318,326.93
  6. Step 6: Final answer
    x = 224,828.81

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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.