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Finding the Fourth Proportional to 630,880.96, 946,472 and 210,160.32

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Solution

The fourth proportional to 630,880.96, 946,472 and 210,160.32 is: 315,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,880.96 : 946,472 = 210,160.32 : x
  2. Step 2: Convert to fraction form
    630,880.96/946,472 = 210,160.32/x
  3. Step 3: Cross multiply
    630,880.96x = 946,472 × 210,160.32
  4. Step 4: Simplify right side
    630,880.96x = 198,910,858,391.04
  5. Step 5: Solve for x
    x = 198,910,858,391.04/630,880.96
  6. Step 6: Final answer
    x = 315,290.63

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1.5x scale

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.