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Finding the Fourth Proportional to 270,602.12, 405,855.66 and 83,615.24

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Solution

The fourth proportional to 270,602.12, 405,855.66 and 83,615.24 is: 125,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,602.12 : 405,855.66 = 83,615.24 : x
  2. Step 2: Convert to fraction form
    270,602.12/405,855.66 = 83,615.24/x
  3. Step 3: Cross multiply
    270,602.12x = 405,855.66 × 83,615.24
  4. Step 4: Simplify right side
    270,602.12x = 33,935,718,416.26
  5. Step 5: Solve for x
    x = 33,935,718,416.26/270,602.12
  6. Step 6: Final answer
    x = 125,408.18

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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.