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Finding the Fourth Proportional to 469,915.10, 648,465.46 and 255,050.57

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Solution

The fourth proportional to 469,915.10, 648,465.46 and 255,050.57 is: 351,960.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,915.10 : 648,465.46 = 255,050.57 : x
  2. Step 2: Convert to fraction form
    469,915.10/648,465.46 = 255,050.57/x
  3. Step 3: Cross multiply
    469,915.10x = 648,465.46 × 255,050.57
  4. Step 4: Simplify right side
    469,915.10x = 165,391,481,318.36
  5. Step 5: Solve for x
    x = 165,391,481,318.36/469,915.10
  6. Step 6: Final answer
    x = 351,960.34

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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.