Home / 270,161.28-405,242.04-70,481.40

Finding the Fourth Proportional to 270,161.28, 405,242.04 and 70,481.40

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Solution

The fourth proportional to 270,161.28, 405,242.04 and 70,481.40 is: 105,722.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,161.28 : 405,242.04 = 70,481.40 : x
  2. Step 2: Convert to fraction form
    270,161.28/405,242.04 = 70,481.40/x
  3. Step 3: Cross multiply
    270,161.28x = 405,242.04 × 70,481.40
  4. Step 4: Simplify right side
    270,161.28x = 28,562,026,318.06
  5. Step 5: Solve for x
    x = 28,562,026,318.06/270,161.28
  6. Step 6: Final answer
    x = 105,722.13

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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.