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Finding the Fourth Proportional to 255,698.46, 383,547.36 and 68,709.96

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Solution

The fourth proportional to 255,698.46, 383,547.36 and 68,709.96 is: 103,064.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,698.46 : 383,547.36 = 68,709.96 : x
  2. Step 2: Convert to fraction form
    255,698.46/383,547.36 = 68,709.96/x
  3. Step 3: Cross multiply
    255,698.46x = 383,547.36 × 68,709.96
  4. Step 4: Simplify right side
    255,698.46x = 26,353,523,763.71
  5. Step 5: Solve for x
    x = 26,353,523,763.71/255,698.46
  6. Step 6: Final answer
    x = 103,064.85

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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.