Home / 257,585.31-355,470.66-142,866.23

Finding the Fourth Proportional to 257,585.31, 355,470.66 and 142,866.23

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Solution

The fourth proportional to 257,585.31, 355,470.66 and 142,866.23 is: 197,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,585.31 : 355,470.66 = 142,866.23 : x
  2. Step 2: Convert to fraction form
    257,585.31/355,470.66 = 142,866.23/x
  3. Step 3: Cross multiply
    257,585.31x = 355,470.66 × 142,866.23
  4. Step 4: Simplify right side
    257,585.31x = 50,784,751,292.46
  5. Step 5: Solve for x
    x = 50,784,751,292.46/257,585.31
  6. Step 6: Final answer
    x = 197,157.02

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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.