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Finding the Fourth Proportional to 284,188.69, 426,283.55 and 189,603.67

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Solution

The fourth proportional to 284,188.69, 426,283.55 and 189,603.67 is: 284,405.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,188.69 : 426,283.55 = 189,603.67 : x
  2. Step 2: Convert to fraction form
    284,188.69/426,283.55 = 189,603.67/x
  3. Step 3: Cross multiply
    284,188.69x = 426,283.55 × 189,603.67
  4. Step 4: Simplify right side
    284,188.69x = 80,824,926,568.95
  5. Step 5: Solve for x
    x = 80,824,926,568.95/284,188.69
  6. Step 6: Final answer
    x = 284,405.85

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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.