Home / 328,865.50-453,526.39-218,288.58

Finding the Fourth Proportional to 328,865.50, 453,526.39 and 218,288.58

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Solution

The fourth proportional to 328,865.50, 453,526.39 and 218,288.58 is: 301,033.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,865.50 : 453,526.39 = 218,288.58 : x
  2. Step 2: Convert to fraction form
    328,865.50/453,526.39 = 218,288.58/x
  3. Step 3: Cross multiply
    328,865.50x = 453,526.39 × 218,288.58
  4. Step 4: Simplify right side
    328,865.50x = 98,999,631,665.63
  5. Step 5: Solve for x
    x = 98,999,631,665.63/328,865.50
  6. Step 6: Final answer
    x = 301,033.81

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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.