Home / 255,406.23-383,159.57-105,565.95

Finding the Fourth Proportional to 255,406.23, 383,159.57 and 105,565.95

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Solution

The fourth proportional to 255,406.23, 383,159.57 and 105,565.95 is: 158,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,406.23 : 383,159.57 = 105,565.95 : x
  2. Step 2: Convert to fraction form
    255,406.23/383,159.57 = 105,565.95/x
  3. Step 3: Cross multiply
    255,406.23x = 383,159.57 × 105,565.95
  4. Step 4: Simplify right side
    255,406.23x = 40,448,603,480.81
  5. Step 5: Solve for x
    x = 40,448,603,480.81/255,406.23
  6. Step 6: Final answer
    x = 158,369.68

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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.