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Finding the Fourth Proportional to 208,980.03, 288,480.72 and 141,088.97

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Solution

The fourth proportional to 208,980.03, 288,480.72 and 141,088.97 is: 194,762.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,980.03 : 288,480.72 = 141,088.97 : x
  2. Step 2: Convert to fraction form
    208,980.03/288,480.72 = 141,088.97/x
  3. Step 3: Cross multiply
    208,980.03x = 288,480.72 × 141,088.97
  4. Step 4: Simplify right side
    208,980.03x = 40,701,446,207.25
  5. Step 5: Solve for x
    x = 40,701,446,207.25/208,980.03
  6. Step 6: Final answer
    x = 194,762.37

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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.