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Finding the Fourth Proportional to 343,362.60, 515,043.90 and 325,866.60

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Solution

The fourth proportional to 343,362.60, 515,043.90 and 325,866.60 is: 488,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,362.60 : 515,043.90 = 325,866.60 : x
  2. Step 2: Convert to fraction form
    343,362.60/515,043.90 = 325,866.60/x
  3. Step 3: Cross multiply
    343,362.60x = 515,043.90 × 325,866.60
  4. Step 4: Simplify right side
    343,362.60x = 167,835,604,543.74
  5. Step 5: Solve for x
    x = 167,835,604,543.74/343,362.60
  6. Step 6: Final answer
    x = 488,799.90

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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.