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Finding the Fourth Proportional to 243,708.98, 365,672.43 and 154,938.74

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Solution

The fourth proportional to 243,708.98, 365,672.43 and 154,938.74 is: 232,477.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,708.98 : 365,672.43 = 154,938.74 : x
  2. Step 2: Convert to fraction form
    243,708.98/365,672.43 = 154,938.74/x
  3. Step 3: Cross multiply
    243,708.98x = 365,672.43 × 154,938.74
  4. Step 4: Simplify right side
    243,708.98x = 56,656,825,556.94
  5. Step 5: Solve for x
    x = 56,656,825,556.94/243,708.98
  6. Step 6: Final answer
    x = 232,477.38

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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.