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Finding the Fourth Proportional to 343,376.60, 515,064.90 and 325,880.60

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Solution

The fourth proportional to 343,376.60, 515,064.90 and 325,880.60 is: 488,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,376.60 : 515,064.90 = 325,880.60 : x
  2. Step 2: Convert to fraction form
    343,376.60/515,064.90 = 325,880.60/x
  3. Step 3: Cross multiply
    343,376.60x = 515,064.90 × 325,880.60
  4. Step 4: Simplify right side
    343,376.60x = 167,849,658,650.94
  5. Step 5: Solve for x
    x = 167,849,658,650.94/343,376.60
  6. Step 6: Final answer
    x = 488,820.90

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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.