Home / 279,036.22-385,085.73-151,709.08

Finding the Fourth Proportional to 279,036.22, 385,085.73 and 151,709.08

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Solution

The fourth proportional to 279,036.22, 385,085.73 and 151,709.08 is: 209,367.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,036.22 : 385,085.73 = 151,709.08 : x
  2. Step 2: Convert to fraction form
    279,036.22/385,085.73 = 151,709.08/x
  3. Step 3: Cross multiply
    279,036.22x = 385,085.73 × 151,709.08
  4. Step 4: Simplify right side
    279,036.22x = 58,421,001,819.43
  5. Step 5: Solve for x
    x = 58,421,001,819.43/279,036.22
  6. Step 6: Final answer
    x = 209,367.09

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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.