Home / 257,475.04-355,315.42-142,753.38

Finding the Fourth Proportional to 257,475.04, 355,315.42 and 142,753.38

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Solution

The fourth proportional to 257,475.04, 355,315.42 and 142,753.38 is: 196,999.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,475.04 : 355,315.42 = 142,753.38 : x
  2. Step 2: Convert to fraction form
    257,475.04/355,315.42 = 142,753.38/x
  3. Step 3: Cross multiply
    257,475.04x = 355,315.42 × 142,753.38
  4. Step 4: Simplify right side
    257,475.04x = 50,722,477,171.12
  5. Step 5: Solve for x
    x = 50,722,477,171.12/257,475.04
  6. Step 6: Final answer
    x = 196,999.59

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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.