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Finding the Fourth Proportional to 375,639.49, 518,381.46 and 203,562.22

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Solution

The fourth proportional to 375,639.49, 518,381.46 and 203,562.22 is: 280,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,639.49 : 518,381.46 = 203,562.22 : x
  2. Step 2: Convert to fraction form
    375,639.49/518,381.46 = 203,562.22/x
  3. Step 3: Cross multiply
    375,639.49x = 518,381.46 × 203,562.22
  4. Step 4: Simplify right side
    375,639.49x = 105,522,880,804.44
  5. Step 5: Solve for x
    x = 105,522,880,804.44/375,639.49
  6. Step 6: Final answer
    x = 280,915.30

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1.5x scale

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.