Home / 772,110.20-1,158,165.30-211,201.40

Finding the Fourth Proportional to 772,110.20, 1,158,165.30 and 211,201.40

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Solution

The fourth proportional to 772,110.20, 1,158,165.30 and 211,201.40 is: 316,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,110.20 : 1,158,165.30 = 211,201.40 : x
  2. Step 2: Convert to fraction form
    772,110.20/1,158,165.30 = 211,201.40/x
  3. Step 3: Cross multiply
    772,110.20x = 1,158,165.30 × 211,201.40
  4. Step 4: Simplify right side
    772,110.20x = 244,606,132,791.42
  5. Step 5: Solve for x
    x = 244,606,132,791.42/772,110.20
  6. Step 6: Final answer
    x = 316,802.10

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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.