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Finding the Fourth Proportional to 219,034.98, 328,570.91 and 69,271.94

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Solution

The fourth proportional to 219,034.98, 328,570.91 and 69,271.94 is: 103,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,034.98 : 328,570.91 = 69,271.94 : x
  2. Step 2: Convert to fraction form
    219,034.98/328,570.91 = 69,271.94/x
  3. Step 3: Cross multiply
    219,034.98x = 328,570.91 × 69,271.94
  4. Step 4: Simplify right side
    219,034.98x = 22,760,742,374.05
  5. Step 5: Solve for x
    x = 22,760,742,374.05/219,034.98
  6. Step 6: Final answer
    x = 103,913.73

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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.