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Finding the Fourth Proportional to 328,039.65, 452,779.17 and 213,603.93

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Solution

The fourth proportional to 328,039.65, 452,779.17 and 213,603.93 is: 294,828.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,039.65 : 452,779.17 = 213,603.93 : x
  2. Step 2: Convert to fraction form
    328,039.65/452,779.17 = 213,603.93/x
  3. Step 3: Cross multiply
    328,039.65x = 452,779.17 × 213,603.93
  4. Step 4: Simplify right side
    328,039.65x = 96,715,410,134.14
  5. Step 5: Solve for x
    x = 96,715,410,134.14/328,039.65
  6. Step 6: Final answer
    x = 294,828.42

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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.