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Finding the Fourth Proportional to 265,665.80, 367,085.46 and 212,390.60

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Solution

The fourth proportional to 265,665.80, 367,085.46 and 212,390.60 is: 293,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,665.80 : 367,085.46 = 212,390.60 : x
  2. Step 2: Convert to fraction form
    265,665.80/367,085.46 = 212,390.60/x
  3. Step 3: Cross multiply
    265,665.80x = 367,085.46 × 212,390.60
  4. Step 4: Simplify right side
    265,665.80x = 77,965,501,100.68
  5. Step 5: Solve for x
    x = 77,965,501,100.68/265,665.80
  6. Step 6: Final answer
    x = 293,472.10

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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.