Home / 261,915.28-392,898.24-104,108.32

Finding the Fourth Proportional to 261,915.28, 392,898.24 and 104,108.32

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Solution

The fourth proportional to 261,915.28, 392,898.24 and 104,108.32 is: 156,172.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,915.28 : 392,898.24 = 104,108.32 : x
  2. Step 2: Convert to fraction form
    261,915.28/392,898.24 = 104,108.32/x
  3. Step 3: Cross multiply
    261,915.28x = 392,898.24 × 104,108.32
  4. Step 4: Simplify right side
    261,915.28x = 40,903,975,697.36
  5. Step 5: Solve for x
    x = 40,903,975,697.36/261,915.28
  6. Step 6: Final answer
    x = 156,172.54

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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.