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Finding the Fourth Proportional to 236,830.40, 355,245.60 and 205,035.20

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Solution

The fourth proportional to 236,830.40, 355,245.60 and 205,035.20 is: 307,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,830.40 : 355,245.60 = 205,035.20 : x
  2. Step 2: Convert to fraction form
    236,830.40/355,245.60 = 205,035.20/x
  3. Step 3: Cross multiply
    236,830.40x = 355,245.60 × 205,035.20
  4. Step 4: Simplify right side
    236,830.40x = 72,837,852,645.12
  5. Step 5: Solve for x
    x = 72,837,852,645.12/236,830.40
  6. Step 6: Final answer
    x = 307,552.80

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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.