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Finding the Fourth Proportional to 257,303.44, 355,074.60 and 144,125.84

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Solution

The fourth proportional to 257,303.44, 355,074.60 and 144,125.84 is: 198,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,303.44 : 355,074.60 = 144,125.84 : x
  2. Step 2: Convert to fraction form
    257,303.44/355,074.60 = 144,125.84/x
  3. Step 3: Cross multiply
    257,303.44x = 355,074.60 × 144,125.84
  4. Step 4: Simplify right side
    257,303.44x = 51,175,424,987.66
  5. Step 5: Solve for x
    x = 51,175,424,987.66/257,303.44
  6. Step 6: Final answer
    x = 198,891.34

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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.