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Finding the Fourth Proportional to 344,579.80, 515,703.30 and 302,589.40

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Solution

The fourth proportional to 344,579.80, 515,703.30 and 302,589.40 is: 452,859.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,579.80 : 515,703.30 = 302,589.40 : x
  2. Step 2: Convert to fraction form
    344,579.80/515,703.30 = 302,589.40/x
  3. Step 3: Cross multiply
    344,579.80x = 515,703.30 × 302,589.40
  4. Step 4: Simplify right side
    344,579.80x = 156,046,352,125.02
  5. Step 5: Solve for x
    x = 156,046,352,125.02/344,579.80
  6. Step 6: Final answer
    x = 452,859.84

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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.