Home / 283,403.27-391,090.64-154,343.16

Finding the Fourth Proportional to 283,403.27, 391,090.64 and 154,343.16

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Solution

The fourth proportional to 283,403.27, 391,090.64 and 154,343.16 is: 212,990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,403.27 : 391,090.64 = 154,343.16 : x
  2. Step 2: Convert to fraction form
    283,403.27/391,090.64 = 154,343.16/x
  3. Step 3: Cross multiply
    283,403.27x = 391,090.64 × 154,343.16
  4. Step 4: Simplify right side
    283,403.27x = 60,362,164,452.31
  5. Step 5: Solve for x
    x = 60,362,164,452.31/283,403.27
  6. Step 6: Final answer
    x = 212,990.36

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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.