Home / 255,272.58-383,018.22-105,621.66

Finding the Fourth Proportional to 255,272.58, 383,018.22 and 105,621.66

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Solution

The fourth proportional to 255,272.58, 383,018.22 and 105,621.66 is: 158,477.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,272.58 : 383,018.22 = 105,621.66 : x
  2. Step 2: Convert to fraction form
    255,272.58/383,018.22 = 105,621.66/x
  3. Step 3: Cross multiply
    255,272.58x = 383,018.22 × 105,621.66
  4. Step 4: Simplify right side
    255,272.58x = 40,455,020,206.65
  5. Step 5: Solve for x
    x = 40,455,020,206.65/255,272.58
  6. Step 6: Final answer
    x = 158,477.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.