Home / 257,899.68-355,908.60-144,729.36

Finding the Fourth Proportional to 257,899.68, 355,908.60 and 144,729.36

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Solution

The fourth proportional to 257,899.68, 355,908.60 and 144,729.36 is: 199,730.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,899.68 : 355,908.60 = 144,729.36 : x
  2. Step 2: Convert to fraction form
    257,899.68/355,908.60 = 144,729.36/x
  3. Step 3: Cross multiply
    257,899.68x = 355,908.60 × 144,729.36
  4. Step 4: Simplify right side
    257,899.68x = 51,510,423,896.50
  5. Step 5: Solve for x
    x = 51,510,423,896.50/257,899.68
  6. Step 6: Final answer
    x = 199,730.47

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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.