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Finding the Fourth Proportional to 230,673.05, 345,843.47 and 141,742.80

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Solution

The fourth proportional to 230,673.05, 345,843.47 and 141,742.80 is: 212,512.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,673.05 : 345,843.47 = 141,742.80 : x
  2. Step 2: Convert to fraction form
    230,673.05/345,843.47 = 141,742.80/x
  3. Step 3: Cross multiply
    230,673.05x = 345,843.47 × 141,742.80
  4. Step 4: Simplify right side
    230,673.05x = 49,020,821,090.80
  5. Step 5: Solve for x
    x = 49,020,821,090.80/230,673.05
  6. Step 6: Final answer
    x = 212,512.13

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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.