Home / 309,717.45-427,593.30-195,094.35

Finding the Fourth Proportional to 309,717.45, 427,593.30 and 195,094.35

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Solution

The fourth proportional to 309,717.45, 427,593.30 and 195,094.35 is: 269,345.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,717.45 : 427,593.30 = 195,094.35 : x
  2. Step 2: Convert to fraction form
    309,717.45/427,593.30 = 195,094.35/x
  3. Step 3: Cross multiply
    309,717.45x = 427,593.30 × 195,094.35
  4. Step 4: Simplify right side
    309,717.45x = 83,421,036,927.86
  5. Step 5: Solve for x
    x = 83,421,036,927.86/309,717.45
  6. Step 6: Final answer
    x = 269,345.61

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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.