Home / 328,664.22-492,240.81-208,712.22

Finding the Fourth Proportional to 328,664.22, 492,240.81 and 208,712.22

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Solution

The fourth proportional to 328,664.22, 492,240.81 and 208,712.22 is: 312,588.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,664.22 : 492,240.81 = 208,712.22 : x
  2. Step 2: Convert to fraction form
    328,664.22/492,240.81 = 208,712.22/x
  3. Step 3: Cross multiply
    328,664.22x = 492,240.81 × 208,712.22
  4. Step 4: Simplify right side
    328,664.22x = 102,736,672,229.70
  5. Step 5: Solve for x
    x = 102,736,672,229.70/328,664.22
  6. Step 6: Final answer
    x = 312,588.55

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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.