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Finding the Fourth Proportional to 242,851.80, 335,095.20 and 135,418.80

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Solution

The fourth proportional to 242,851.80, 335,095.20 and 135,418.80 is: 186,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,851.80 : 335,095.20 = 135,418.80 : x
  2. Step 2: Convert to fraction form
    242,851.80/335,095.20 = 135,418.80/x
  3. Step 3: Cross multiply
    242,851.80x = 335,095.20 × 135,418.80
  4. Step 4: Simplify right side
    242,851.80x = 45,378,189,869.76
  5. Step 5: Solve for x
    x = 45,378,189,869.76/242,851.80
  6. Step 6: Final answer
    x = 186,855.48

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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.