Home / 257,384.52-355,190.40-144,208.08

Finding the Fourth Proportional to 257,384.52, 355,190.40 and 144,208.08

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Solution

The fourth proportional to 257,384.52, 355,190.40 and 144,208.08 is: 199,007.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,384.52 : 355,190.40 = 144,208.08 : x
  2. Step 2: Convert to fraction form
    257,384.52/355,190.40 = 144,208.08/x
  3. Step 3: Cross multiply
    257,384.52x = 355,190.40 × 144,208.08
  4. Step 4: Simplify right side
    257,384.52x = 51,221,325,618.43
  5. Step 5: Solve for x
    x = 51,221,325,618.43/257,384.52
  6. Step 6: Final answer
    x = 199,007.02

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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.