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Finding the Fourth Proportional to 355,740.56, 490,915.52 and 194,594.19

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Solution

The fourth proportional to 355,740.56, 490,915.52 and 194,594.19 is: 268,536.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,740.56 : 490,915.52 = 194,594.19 : x
  2. Step 2: Convert to fraction form
    355,740.56/490,915.52 = 194,594.19/x
  3. Step 3: Cross multiply
    355,740.56x = 490,915.52 × 194,594.19
  4. Step 4: Simplify right side
    355,740.56x = 95,529,306,999.86
  5. Step 5: Solve for x
    x = 95,529,306,999.86/355,740.56
  6. Step 6: Final answer
    x = 268,536.45

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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.