Home / 257,560.56-355,436.51-142,841.48

Finding the Fourth Proportional to 257,560.56, 355,436.51 and 142,841.48

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Solution

The fourth proportional to 257,560.56, 355,436.51 and 142,841.48 is: 197,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,560.56 : 355,436.51 = 142,841.48 : x
  2. Step 2: Convert to fraction form
    257,560.56/355,436.51 = 142,841.48/x
  3. Step 3: Cross multiply
    257,560.56x = 355,436.51 × 142,841.48
  4. Step 4: Simplify right side
    257,560.56x = 50,771,074,643.04
  5. Step 5: Solve for x
    x = 50,771,074,643.04/257,560.56
  6. Step 6: Final answer
    x = 197,122.86

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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.