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Finding the Fourth Proportional to 230,587.23, 343,588.48 and 205,434

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Solution

The fourth proportional to 230,587.23, 343,588.48 and 205,434 is: 306,108.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,587.23 : 343,588.48 = 205,434 : x
  2. Step 2: Convert to fraction form
    230,587.23/343,588.48 = 205,434/x
  3. Step 3: Cross multiply
    230,587.23x = 343,588.48 × 205,434
  4. Step 4: Simplify right side
    230,587.23x = 70,584,755,800.32
  5. Step 5: Solve for x
    x = 70,584,755,800.32/230,587.23
  6. Step 6: Final answer
    x = 306,108.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.