Home / 218,947.24-302,146.74-118,345

Finding the Fourth Proportional to 218,947.24, 302,146.74 and 118,345

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Solution

The fourth proportional to 218,947.24, 302,146.74 and 118,345 is: 163,315.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,947.24 : 302,146.74 = 118,345 : x
  2. Step 2: Convert to fraction form
    218,947.24/302,146.74 = 118,345/x
  3. Step 3: Cross multiply
    218,947.24x = 302,146.74 × 118,345
  4. Step 4: Simplify right side
    218,947.24x = 35,757,555,945.30
  5. Step 5: Solve for x
    x = 35,757,555,945.30/218,947.24
  6. Step 6: Final answer
    x = 163,315.86

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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.