Home / 257,848.57-355,876.49-162,385.21

Finding the Fourth Proportional to 257,848.57, 355,876.49 and 162,385.21

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Solution

The fourth proportional to 257,848.57, 355,876.49 and 162,385.21 is: 224,120.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,848.57 : 355,876.49 = 162,385.21 : x
  2. Step 2: Convert to fraction form
    257,848.57/355,876.49 = 162,385.21/x
  3. Step 3: Cross multiply
    257,848.57x = 355,876.49 × 162,385.21
  4. Step 4: Simplify right side
    257,848.57x = 57,789,077,750.79
  5. Step 5: Solve for x
    x = 57,789,077,750.79/257,848.57
  6. Step 6: Final answer
    x = 224,120.22

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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.