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Finding the Fourth Proportional to 315,751.07, 435,172.83 and 239,087

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Solution

The fourth proportional to 315,751.07, 435,172.83 and 239,087 is: 329,513.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,751.07 : 435,172.83 = 239,087 : x
  2. Step 2: Convert to fraction form
    315,751.07/435,172.83 = 239,087/x
  3. Step 3: Cross multiply
    315,751.07x = 435,172.83 × 239,087
  4. Step 4: Simplify right side
    315,751.07x = 104,044,166,406.21
  5. Step 5: Solve for x
    x = 104,044,166,406.21/315,751.07
  6. Step 6: Final answer
    x = 329,513.27

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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.