Home / 257,630.10-355,529.69-157,028.10

Finding the Fourth Proportional to 257,630.10, 355,529.69 and 157,028.10

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Solution

The fourth proportional to 257,630.10, 355,529.69 and 157,028.10 is: 216,698.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,630.10 : 355,529.69 = 157,028.10 : x
  2. Step 2: Convert to fraction form
    257,630.10/355,529.69 = 157,028.10/x
  3. Step 3: Cross multiply
    257,630.10x = 355,529.69 × 157,028.10
  4. Step 4: Simplify right side
    257,630.10x = 55,828,150,929.15
  5. Step 5: Solve for x
    x = 55,828,150,929.15/257,630.10
  6. Step 6: Final answer
    x = 216,698.87

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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.