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Finding the Fourth Proportional to 343,279.72, 473,775.05 and 190,351.92

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Solution

The fourth proportional to 343,279.72, 473,775.05 and 190,351.92 is: 262,712.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,279.72 : 473,775.05 = 190,351.92 : x
  2. Step 2: Convert to fraction form
    343,279.72/473,775.05 = 190,351.92/x
  3. Step 3: Cross multiply
    343,279.72x = 473,775.05 × 190,351.92
  4. Step 4: Simplify right side
    343,279.72x = 90,183,992,132.77
  5. Step 5: Solve for x
    x = 90,183,992,132.77/343,279.72
  6. Step 6: Final answer
    x = 262,712.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.