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Finding the Fourth Proportional to 328,237.10, 492,550.05 and 239,266.70

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Solution

The fourth proportional to 328,237.10, 492,550.05 and 239,266.70 is: 359,041.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,237.10 : 492,550.05 = 239,266.70 : x
  2. Step 2: Convert to fraction form
    328,237.10/492,550.05 = 239,266.70/x
  3. Step 3: Cross multiply
    328,237.10x = 492,550.05 × 239,266.70
  4. Step 4: Simplify right side
    328,237.10x = 117,850,825,048.34
  5. Step 5: Solve for x
    x = 117,850,825,048.34/328,237.10
  6. Step 6: Final answer
    x = 359,041.76

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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.