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Finding the Fourth Proportional to 456,815.36, 630,397.56 and 252,861.90

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Solution

The fourth proportional to 456,815.36, 630,397.56 and 252,861.90 is: 348,945.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,815.36 : 630,397.56 = 252,861.90 : x
  2. Step 2: Convert to fraction form
    456,815.36/630,397.56 = 252,861.90/x
  3. Step 3: Cross multiply
    456,815.36x = 630,397.56 × 252,861.90
  4. Step 4: Simplify right side
    456,815.36x = 159,403,524,776.96
  5. Step 5: Solve for x
    x = 159,403,524,776.96/456,815.36
  6. Step 6: Final answer
    x = 348,945.19

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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.