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Finding the Fourth Proportional to 265,971.57, 367,039.87 and 145,112.89

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Solution

The fourth proportional to 265,971.57, 367,039.87 and 145,112.89 is: 200,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,971.57 : 367,039.87 = 145,112.89 : x
  2. Step 2: Convert to fraction form
    265,971.57/367,039.87 = 145,112.89/x
  3. Step 3: Cross multiply
    265,971.57x = 367,039.87 × 145,112.89
  4. Step 4: Simplify right side
    265,971.57x = 53,262,216,280.92
  5. Step 5: Solve for x
    x = 53,262,216,280.92/265,971.57
  6. Step 6: Final answer
    x = 200,255.30

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1.5x scale

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.