Home / 282,021.13-389,189.16-154,697.03

Finding the Fourth Proportional to 282,021.13, 389,189.16 and 154,697.03

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Solution

The fourth proportional to 282,021.13, 389,189.16 and 154,697.03 is: 213,481.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,021.13 : 389,189.16 = 154,697.03 : x
  2. Step 2: Convert to fraction form
    282,021.13/389,189.16 = 154,697.03/x
  3. Step 3: Cross multiply
    282,021.13x = 389,189.16 × 154,697.03
  4. Step 4: Simplify right side
    282,021.13x = 60,206,404,440.76
  5. Step 5: Solve for x
    x = 60,206,404,440.76/282,021.13
  6. Step 6: Final answer
    x = 213,481.90

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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.