Home / 255,466.88-383,200.24-77,974.72

Finding the Fourth Proportional to 255,466.88, 383,200.24 and 77,974.72

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Solution

The fourth proportional to 255,466.88, 383,200.24 and 77,974.72 is: 116,962.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,466.88 : 383,200.24 = 77,974.72 : x
  2. Step 2: Convert to fraction form
    255,466.88/383,200.24 = 77,974.72/x
  3. Step 3: Cross multiply
    255,466.88x = 383,200.24 × 77,974.72
  4. Step 4: Simplify right side
    255,466.88x = 29,879,931,417.93
  5. Step 5: Solve for x
    x = 29,879,931,417.93/255,466.88
  6. Step 6: Final answer
    x = 116,962.06

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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.