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Finding the Fourth Proportional to 270,031.17, 405,069.81 and 70,351.59

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Solution

The fourth proportional to 270,031.17, 405,069.81 and 70,351.59 is: 105,533.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,031.17 : 405,069.81 = 70,351.59 : x
  2. Step 2: Convert to fraction form
    270,031.17/405,069.81 = 70,351.59/x
  3. Step 3: Cross multiply
    270,031.17x = 405,069.81 × 70,351.59
  4. Step 4: Simplify right side
    270,031.17x = 28,497,305,194.50
  5. Step 5: Solve for x
    x = 28,497,305,194.50/270,031.17
  6. Step 6: Final answer
    x = 105,533.39

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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.