Home / 257,953.36-355,970.64-143,226.04

Finding the Fourth Proportional to 257,953.36, 355,970.64 and 143,226.04

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Solution

The fourth proportional to 257,953.36, 355,970.64 and 143,226.04 is: 197,649.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,953.36 : 355,970.64 = 143,226.04 : x
  2. Step 2: Convert to fraction form
    257,953.36/355,970.64 = 143,226.04/x
  3. Step 3: Cross multiply
    257,953.36x = 355,970.64 × 143,226.04
  4. Step 4: Simplify right side
    257,953.36x = 50,984,265,123.47
  5. Step 5: Solve for x
    x = 50,984,265,123.47/257,953.36
  6. Step 6: Final answer
    x = 197,649.16

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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.