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Finding the Fourth Proportional to 254,472.79, 351,336.84 and 157,779.34

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Solution

The fourth proportional to 254,472.79, 351,336.84 and 157,779.34 is: 217,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,472.79 : 351,336.84 = 157,779.34 : x
  2. Step 2: Convert to fraction form
    254,472.79/351,336.84 = 157,779.34/x
  3. Step 3: Cross multiply
    254,472.79x = 351,336.84 × 157,779.34
  4. Step 4: Simplify right side
    254,472.79x = 55,433,696,126.65
  5. Step 5: Solve for x
    x = 55,433,696,126.65/254,472.79
  6. Step 6: Final answer
    x = 217,837.42

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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.