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Finding the Fourth Proportional to 340,998.52, 470,495.66 and 220,113.92

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Solution

The fourth proportional to 340,998.52, 470,495.66 and 220,113.92 is: 303,704.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,998.52 : 470,495.66 = 220,113.92 : x
  2. Step 2: Convert to fraction form
    340,998.52/470,495.66 = 220,113.92/x
  3. Step 3: Cross multiply
    340,998.52x = 470,495.66 × 220,113.92
  4. Step 4: Simplify right side
    340,998.52x = 103,562,641,713.11
  5. Step 5: Solve for x
    x = 103,562,641,713.11/340,998.52
  6. Step 6: Final answer
    x = 303,704.08

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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.