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Finding the Fourth Proportional to 255,653.34, 383,479.36 and 75,752.77

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Solution

The fourth proportional to 255,653.34, 383,479.36 and 75,752.77 is: 113,628.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,653.34 : 383,479.36 = 75,752.77 : x
  2. Step 2: Convert to fraction form
    255,653.34/383,479.36 = 75,752.77/x
  3. Step 3: Cross multiply
    255,653.34x = 383,479.36 × 75,752.77
  4. Step 4: Simplify right side
    255,653.34x = 29,049,623,757.83
  5. Step 5: Solve for x
    x = 29,049,623,757.83/255,653.34
  6. Step 6: Final answer
    x = 113,628.96

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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.