Home / 257,207.90-384,247.35-166,511.72

Finding the Fourth Proportional to 257,207.90, 384,247.35 and 166,511.72

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Solution

The fourth proportional to 257,207.90, 384,247.35 and 166,511.72 is: 248,754.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,207.90 : 384,247.35 = 166,511.72 : x
  2. Step 2: Convert to fraction form
    257,207.90/384,247.35 = 166,511.72/x
  3. Step 3: Cross multiply
    257,207.90x = 384,247.35 × 166,511.72
  4. Step 4: Simplify right side
    257,207.90x = 63,981,685,232.71
  5. Step 5: Solve for x
    x = 63,981,685,232.71/257,207.90
  6. Step 6: Final answer
    x = 248,754.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.