Home / 282,140.01-389,351.61-154,820.16

Finding the Fourth Proportional to 282,140.01, 389,351.61 and 154,820.16

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Solution

The fourth proportional to 282,140.01, 389,351.61 and 154,820.16 is: 213,650.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,140.01 : 389,351.61 = 154,820.16 : x
  2. Step 2: Convert to fraction form
    282,140.01/389,351.61 = 154,820.16/x
  3. Step 3: Cross multiply
    282,140.01x = 389,351.61 × 154,820.16
  4. Step 4: Simplify right side
    282,140.01x = 60,279,478,556.46
  5. Step 5: Solve for x
    x = 60,279,478,556.46/282,140.01
  6. Step 6: Final answer
    x = 213,650.94

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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.