Home / 257,263.26-355,035.96-155,287.10

Finding the Fourth Proportional to 257,263.26, 355,035.96 and 155,287.10

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Solution

The fourth proportional to 257,263.26, 355,035.96 and 155,287.10 is: 214,303.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,263.26 : 355,035.96 = 155,287.10 : x
  2. Step 2: Convert to fraction form
    257,263.26/355,035.96 = 155,287.10/x
  3. Step 3: Cross multiply
    257,263.26x = 355,035.96 × 155,287.10
  4. Step 4: Simplify right side
    257,263.26x = 55,132,504,624.12
  5. Step 5: Solve for x
    x = 55,132,504,624.12/257,263.26
  6. Step 6: Final answer
    x = 214,303.84

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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.