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Finding the Fourth Proportional to 219,852.69, 330,332.63 and 139,927.41

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Solution

The fourth proportional to 219,852.69, 330,332.63 and 139,927.41 is: 210,243.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,852.69 : 330,332.63 = 139,927.41 : x
  2. Step 2: Convert to fraction form
    219,852.69/330,332.63 = 139,927.41/x
  3. Step 3: Cross multiply
    219,852.69x = 330,332.63 × 139,927.41
  4. Step 4: Simplify right side
    219,852.69x = 46,222,588,654.75
  5. Step 5: Solve for x
    x = 46,222,588,654.75/219,852.69
  6. Step 6: Final answer
    x = 210,243.45

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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.