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Finding the Fourth Proportional to 284,096.78, 392,040.24 and 163,152.80

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Solution

The fourth proportional to 284,096.78, 392,040.24 and 163,152.80 is: 225,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,096.78 : 392,040.24 = 163,152.80 : x
  2. Step 2: Convert to fraction form
    284,096.78/392,040.24 = 163,152.80/x
  3. Step 3: Cross multiply
    284,096.78x = 392,040.24 × 163,152.80
  4. Step 4: Simplify right side
    284,096.78x = 63,962,462,868.67
  5. Step 5: Solve for x
    x = 63,962,462,868.67/284,096.78
  6. Step 6: Final answer
    x = 225,143.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.