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Finding the Fourth Proportional to 248,978.55, 343,590.39 and 141,548.58

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Solution

The fourth proportional to 248,978.55, 343,590.39 and 141,548.58 is: 195,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,978.55 : 343,590.39 = 141,548.58 : x
  2. Step 2: Convert to fraction form
    248,978.55/343,590.39 = 141,548.58/x
  3. Step 3: Cross multiply
    248,978.55x = 343,590.39 × 141,548.58
  4. Step 4: Simplify right side
    248,978.55x = 48,634,731,806.15
  5. Step 5: Solve for x
    x = 48,634,731,806.15/248,978.55
  6. Step 6: Final answer
    x = 195,337.04

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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.