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Finding the Fourth Proportional to 343,872.40, 515,808.60 and 325,501.60

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Solution

The fourth proportional to 343,872.40, 515,808.60 and 325,501.60 is: 488,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,872.40 : 515,808.60 = 325,501.60 : x
  2. Step 2: Convert to fraction form
    343,872.40/515,808.60 = 325,501.60/x
  3. Step 3: Cross multiply
    343,872.40x = 515,808.60 × 325,501.60
  4. Step 4: Simplify right side
    343,872.40x = 167,896,524,593.76
  5. Step 5: Solve for x
    x = 167,896,524,593.76/343,872.40
  6. Step 6: Final answer
    x = 488,252.40

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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.