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Finding the Fourth Proportional to 630,832.80, 946,400.04 and 210,112.32

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Solution

The fourth proportional to 630,832.80, 946,400.04 and 210,112.32 is: 315,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,832.80 : 946,400.04 = 210,112.32 : x
  2. Step 2: Convert to fraction form
    630,832.80/946,400.04 = 210,112.32/x
  3. Step 3: Cross multiply
    630,832.80x = 946,400.04 × 210,112.32
  4. Step 4: Simplify right side
    630,832.80x = 198,850,308,052.49
  5. Step 5: Solve for x
    x = 198,850,308,052.49/630,832.80
  6. Step 6: Final answer
    x = 315,218.72

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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.