Home / 257,541.36-355,405.96-144,364.12

Finding the Fourth Proportional to 257,541.36, 355,405.96 and 144,364.12

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Solution

The fourth proportional to 257,541.36, 355,405.96 and 144,364.12 is: 199,221.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,541.36 : 355,405.96 = 144,364.12 : x
  2. Step 2: Convert to fraction form
    257,541.36/355,405.96 = 144,364.12/x
  3. Step 3: Cross multiply
    257,541.36x = 355,405.96 × 144,364.12
  4. Step 4: Simplify right side
    257,541.36x = 51,307,868,658.16
  5. Step 5: Solve for x
    x = 51,307,868,658.16/257,541.36
  6. Step 6: Final answer
    x = 199,221.86

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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.