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Finding the Fourth Proportional to 270,111.11, 405,166.97 and 70,431.33

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Solution

The fourth proportional to 270,111.11, 405,166.97 and 70,431.33 is: 105,647.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,111.11 : 405,166.97 = 70,431.33 : x
  2. Step 2: Convert to fraction form
    270,111.11/405,166.97 = 70,431.33/x
  3. Step 3: Cross multiply
    270,111.11x = 405,166.97 × 70,431.33
  4. Step 4: Simplify right side
    270,111.11x = 28,536,448,569.17
  5. Step 5: Solve for x
    x = 28,536,448,569.17/270,111.11
  6. Step 6: Final answer
    x = 105,647.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.