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Finding the Fourth Proportional to 210,610.50, 315,915.75 and 62,866.50

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Solution

The fourth proportional to 210,610.50, 315,915.75 and 62,866.50 is: 94,299.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,610.50 : 315,915.75 = 62,866.50 : x
  2. Step 2: Convert to fraction form
    210,610.50/315,915.75 = 62,866.50/x
  3. Step 3: Cross multiply
    210,610.50x = 315,915.75 × 62,866.50
  4. Step 4: Simplify right side
    210,610.50x = 19,860,517,497.38
  5. Step 5: Solve for x
    x = 19,860,517,497.38/210,610.50
  6. Step 6: Final answer
    x = 94,299.75

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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.