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Finding the Fourth Proportional to 310,487.54, 465,912.06 and 130,559.96

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Solution

The fourth proportional to 310,487.54, 465,912.06 and 130,559.96 is: 195,915.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,487.54 : 465,912.06 = 130,559.96 : x
  2. Step 2: Convert to fraction form
    310,487.54/465,912.06 = 130,559.96/x
  3. Step 3: Cross multiply
    310,487.54x = 465,912.06 × 130,559.96
  4. Step 4: Simplify right side
    310,487.54x = 60,829,459,917.12
  5. Step 5: Solve for x
    x = 60,829,459,917.12/310,487.54
  6. Step 6: Final answer
    x = 195,915.95

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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.