Home / 257,262.26-355,034.58-155,286.10

Finding the Fourth Proportional to 257,262.26, 355,034.58 and 155,286.10

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Solution

The fourth proportional to 257,262.26, 355,034.58 and 155,286.10 is: 214,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,262.26 : 355,034.58 = 155,286.10 : x
  2. Step 2: Convert to fraction form
    257,262.26/355,034.58 = 155,286.10/x
  3. Step 3: Cross multiply
    257,262.26x = 355,034.58 × 155,286.10
  4. Step 4: Simplify right side
    257,262.26x = 55,131,935,293.34
  5. Step 5: Solve for x
    x = 55,131,935,293.34/257,262.26
  6. Step 6: Final answer
    x = 214,302.46

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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.