Home / 257,974.37-355,985.10-144,775.25

Finding the Fourth Proportional to 257,974.37, 355,985.10 and 144,775.25

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Solution

The fourth proportional to 257,974.37, 355,985.10 and 144,775.25 is: 199,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,974.37 : 355,985.10 = 144,775.25 : x
  2. Step 2: Convert to fraction form
    257,974.37/355,985.10 = 144,775.25/x
  3. Step 3: Cross multiply
    257,974.37x = 355,985.10 × 144,775.25
  4. Step 4: Simplify right side
    257,974.37x = 51,537,831,848.78
  5. Step 5: Solve for x
    x = 51,537,831,848.78/257,974.37
  6. Step 6: Final answer
    x = 199,778.88

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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.