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Finding the Fourth Proportional to 343,543.96, 515,351.25 and 118,904.03

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Solution

The fourth proportional to 343,543.96, 515,351.25 and 118,904.03 is: 178,368.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,543.96 : 515,351.25 = 118,904.03 : x
  2. Step 2: Convert to fraction form
    343,543.96/515,351.25 = 118,904.03/x
  3. Step 3: Cross multiply
    343,543.96x = 515,351.25 × 118,904.03
  4. Step 4: Simplify right side
    343,543.96x = 61,277,340,490.54
  5. Step 5: Solve for x
    x = 61,277,340,490.54/343,543.96
  6. Step 6: Final answer
    x = 178,368.27

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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.