Home / 257,380.90-355,185.69-144,204.58

Finding the Fourth Proportional to 257,380.90, 355,185.69 and 144,204.58

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Solution

The fourth proportional to 257,380.90, 355,185.69 and 144,204.58 is: 199,002.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,380.90 : 355,185.69 = 144,204.58 : x
  2. Step 2: Convert to fraction form
    257,380.90/355,185.69 = 144,204.58/x
  3. Step 3: Cross multiply
    257,380.90x = 355,185.69 × 144,204.58
  4. Step 4: Simplify right side
    257,380.90x = 51,219,403,248.46
  5. Step 5: Solve for x
    x = 51,219,403,248.46/257,380.90
  6. Step 6: Final answer
    x = 199,002.35

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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.