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Finding the Fourth Proportional to 350,880.71, 525,885.01 and 161,139.79

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Solution

The fourth proportional to 350,880.71, 525,885.01 and 161,139.79 is: 241,509.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,880.71 : 525,885.01 = 161,139.79 : x
  2. Step 2: Convert to fraction form
    350,880.71/525,885.01 = 161,139.79/x
  3. Step 3: Cross multiply
    350,880.71x = 525,885.01 × 161,139.79
  4. Step 4: Simplify right side
    350,880.71x = 84,741,000,330.05
  5. Step 5: Solve for x
    x = 84,741,000,330.05/350,880.71
  6. Step 6: Final answer
    x = 241,509.43

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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.