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Finding the Fourth Proportional to 439,923, 607,095.36 and 238,719

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Solution

The fourth proportional to 439,923, 607,095.36 and 238,719 is: 329,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,923 : 607,095.36 = 238,719 : x
  2. Step 2: Convert to fraction form
    439,923/607,095.36 = 238,719/x
  3. Step 3: Cross multiply
    439,923x = 607,095.36 × 238,719
  4. Step 4: Simplify right side
    439,923x = 144,925,197,243.84
  5. Step 5: Solve for x
    x = 144,925,197,243.84/439,923
  6. Step 6: Final answer
    x = 329,433.10

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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.