Home / 355,118.46-489,918.39-262,206.86

Finding the Fourth Proportional to 355,118.46, 489,918.39 and 262,206.86

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Solution

The fourth proportional to 355,118.46, 489,918.39 and 262,206.86 is: 361,738.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,118.46 : 489,918.39 = 262,206.86 : x
  2. Step 2: Convert to fraction form
    355,118.46/489,918.39 = 262,206.86/x
  3. Step 3: Cross multiply
    355,118.46x = 489,918.39 × 262,206.86
  4. Step 4: Simplify right side
    355,118.46x = 128,459,962,698.16
  5. Step 5: Solve for x
    x = 128,459,962,698.16/355,118.46
  6. Step 6: Final answer
    x = 361,738.34

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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.