Home / 355,117.46-489,917.01-262,205.86

Finding the Fourth Proportional to 355,117.46, 489,917.01 and 262,205.86

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Solution

The fourth proportional to 355,117.46, 489,917.01 and 262,205.86 is: 361,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,117.46 : 489,917.01 = 262,205.86 : x
  2. Step 2: Convert to fraction form
    355,117.46/489,917.01 = 262,205.86/x
  3. Step 3: Cross multiply
    355,117.46x = 489,917.01 × 262,205.86
  4. Step 4: Simplify right side
    355,117.46x = 128,459,109,710.89
  5. Step 5: Solve for x
    x = 128,459,109,710.89/355,117.46
  6. Step 6: Final answer
    x = 361,736.96

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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.