Home / 257,927.67-355,941.59-143,208.09

Finding the Fourth Proportional to 257,927.67, 355,941.59 and 143,208.09

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Solution

The fourth proportional to 257,927.67, 355,941.59 and 143,208.09 is: 197,627.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,927.67 : 355,941.59 = 143,208.09 : x
  2. Step 2: Convert to fraction form
    257,927.67/355,941.59 = 143,208.09/x
  3. Step 3: Cross multiply
    257,927.67x = 355,941.59 × 143,208.09
  4. Step 4: Simplify right side
    257,927.67x = 50,973,714,539.42
  5. Step 5: Solve for x
    x = 50,973,714,539.42/257,927.67
  6. Step 6: Final answer
    x = 197,627.94

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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.