Home / 210,640.65-315,951.26-52,865.61

Finding the Fourth Proportional to 210,640.65, 315,951.26 and 52,865.61

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Solution

The fourth proportional to 210,640.65, 315,951.26 and 52,865.61 is: 79,295.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,640.65 : 315,951.26 = 52,865.61 : x
  2. Step 2: Convert to fraction form
    210,640.65/315,951.26 = 52,865.61/x
  3. Step 3: Cross multiply
    210,640.65x = 315,951.26 × 52,865.61
  4. Step 4: Simplify right side
    210,640.65x = 16,702,955,825.84
  5. Step 5: Solve for x
    x = 16,702,955,825.84/210,640.65
  6. Step 6: Final answer
    x = 79,295.98

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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.