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Finding the Fourth Proportional to 343,350.63, 515,216.43 and 153,803.34

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Solution

The fourth proportional to 343,350.63, 515,216.43 and 153,803.34 is: 230,790.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,350.63 : 515,216.43 = 153,803.34 : x
  2. Step 2: Convert to fraction form
    343,350.63/515,216.43 = 153,803.34/x
  3. Step 3: Cross multiply
    343,350.63x = 515,216.43 × 153,803.34
  4. Step 4: Simplify right side
    343,350.63x = 79,242,007,756.88
  5. Step 5: Solve for x
    x = 79,242,007,756.88/343,350.63
  6. Step 6: Final answer
    x = 230,790.34

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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.