Home / 208,941.80-313,547.10-115,514.60

Finding the Fourth Proportional to 208,941.80, 313,547.10 and 115,514.60

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Solution

The fourth proportional to 208,941.80, 313,547.10 and 115,514.60 is: 173,346.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,941.80 : 313,547.10 = 115,514.60 : x
  2. Step 2: Convert to fraction form
    208,941.80/313,547.10 = 115,514.60/x
  3. Step 3: Cross multiply
    208,941.80x = 313,547.10 × 115,514.60
  4. Step 4: Simplify right side
    208,941.80x = 36,219,267,837.66
  5. Step 5: Solve for x
    x = 36,219,267,837.66/208,941.80
  6. Step 6: Final answer
    x = 173,346.20

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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.