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Finding the Fourth Proportional to 343,530.96, 515,047.32 and 230,931.88

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Solution

The fourth proportional to 343,530.96, 515,047.32 and 230,931.88 is: 346,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,530.96 : 515,047.32 = 230,931.88 : x
  2. Step 2: Convert to fraction form
    343,530.96/515,047.32 = 230,931.88/x
  3. Step 3: Cross multiply
    343,530.96x = 515,047.32 × 230,931.88
  4. Step 4: Simplify right side
    343,530.96x = 118,940,845,896.56
  5. Step 5: Solve for x
    x = 118,940,845,896.56/343,530.96
  6. Step 6: Final answer
    x = 346,230.35

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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.