Home / 255,435.03-383,152.55-77,942.97

Finding the Fourth Proportional to 255,435.03, 383,152.55 and 77,942.97

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Solution

The fourth proportional to 255,435.03, 383,152.55 and 77,942.97 is: 116,914.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,435.03 : 383,152.55 = 77,942.97 : x
  2. Step 2: Convert to fraction form
    255,435.03/383,152.55 = 77,942.97/x
  3. Step 3: Cross multiply
    255,435.03x = 383,152.55 × 77,942.97
  4. Step 4: Simplify right side
    255,435.03x = 29,864,047,320.36
  5. Step 5: Solve for x
    x = 29,864,047,320.36/255,435.03
  6. Step 6: Final answer
    x = 116,914.46

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1.5x scale

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.