Home / 257,946.84-355,967.37-143,225.73

Finding the Fourth Proportional to 257,946.84, 355,967.37 and 143,225.73

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Solution

The fourth proportional to 257,946.84, 355,967.37 and 143,225.73 is: 197,651.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,946.84 : 355,967.37 = 143,225.73 : x
  2. Step 2: Convert to fraction form
    257,946.84/355,967.37 = 143,225.73/x
  3. Step 3: Cross multiply
    257,946.84x = 355,967.37 × 143,225.73
  4. Step 4: Simplify right side
    257,946.84x = 50,983,686,424.43
  5. Step 5: Solve for x
    x = 50,983,686,424.43/257,946.84
  6. Step 6: Final answer
    x = 197,651.91

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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.