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Finding the Fourth Proportional to 456,647.28, 630,163.81 and 252,698.07

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Solution

The fourth proportional to 456,647.28, 630,163.81 and 252,698.07 is: 348,718.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,647.28 : 630,163.81 = 252,698.07 : x
  2. Step 2: Convert to fraction form
    456,647.28/630,163.81 = 252,698.07/x
  3. Step 3: Cross multiply
    456,647.28x = 630,163.81 × 252,698.07
  4. Step 4: Simplify right side
    456,647.28x = 159,241,178,570.85
  5. Step 5: Solve for x
    x = 159,241,178,570.85/456,647.28
  6. Step 6: Final answer
    x = 348,718.11

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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.