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Finding the Fourth Proportional to 201,280.61, 301,920.72 and 51,520.66

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Solution

The fourth proportional to 201,280.61, 301,920.72 and 51,520.66 is: 77,280.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,280.61 : 301,920.72 = 51,520.66 : x
  2. Step 2: Convert to fraction form
    201,280.61/301,920.72 = 51,520.66/x
  3. Step 3: Cross multiply
    201,280.61x = 301,920.72 × 51,520.66
  4. Step 4: Simplify right side
    201,280.61x = 15,555,155,522.50
  5. Step 5: Solve for x
    x = 15,555,155,522.50/201,280.61
  6. Step 6: Final answer
    x = 77,280.94

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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.