Home / 257,554.10-355,436.15-142,825.02

Finding the Fourth Proportional to 257,554.10, 355,436.15 and 142,825.02

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Solution

The fourth proportional to 257,554.10, 355,436.15 and 142,825.02 is: 197,104.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,554.10 : 355,436.15 = 142,825.02 : x
  2. Step 2: Convert to fraction form
    257,554.10/355,436.15 = 142,825.02/x
  3. Step 3: Cross multiply
    257,554.10x = 355,436.15 × 142,825.02
  4. Step 4: Simplify right side
    257,554.10x = 50,765,175,232.47
  5. Step 5: Solve for x
    x = 50,765,175,232.47/257,554.10
  6. Step 6: Final answer
    x = 197,104.90

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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.