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Finding the Fourth Proportional to 228,651.54, 315,482.13 and 131,884.98

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Solution

The fourth proportional to 228,651.54, 315,482.13 and 131,884.98 is: 181,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,651.54 : 315,482.13 = 131,884.98 : x
  2. Step 2: Convert to fraction form
    228,651.54/315,482.13 = 131,884.98/x
  3. Step 3: Cross multiply
    228,651.54x = 315,482.13 × 131,884.98
  4. Step 4: Simplify right side
    228,651.54x = 41,607,354,405.41
  5. Step 5: Solve for x
    x = 41,607,354,405.41/228,651.54
  6. Step 6: Final answer
    x = 181,968.40

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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.