Home / 257,868.02-355,852.24-143,139.96

Finding the Fourth Proportional to 257,868.02, 355,852.24 and 143,139.96

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Solution

The fourth proportional to 257,868.02, 355,852.24 and 143,139.96 is: 197,530.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,868.02 : 355,852.24 = 143,139.96 : x
  2. Step 2: Convert to fraction form
    257,868.02/355,852.24 = 143,139.96/x
  3. Step 3: Cross multiply
    257,868.02x = 355,852.24 × 143,139.96
  4. Step 4: Simplify right side
    257,868.02x = 50,936,675,041.66
  5. Step 5: Solve for x
    x = 50,936,675,041.66/257,868.02
  6. Step 6: Final answer
    x = 197,530.02

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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.