Home / 218,924.98-302,116.02-123,431.02

Finding the Fourth Proportional to 218,924.98, 302,116.02 and 123,431.02

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Solution

The fourth proportional to 218,924.98, 302,116.02 and 123,431.02 is: 170,334.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,924.98 : 302,116.02 = 123,431.02 : x
  2. Step 2: Convert to fraction form
    218,924.98/302,116.02 = 123,431.02/x
  3. Step 3: Cross multiply
    218,924.98x = 302,116.02 × 123,431.02
  4. Step 4: Simplify right side
    218,924.98x = 37,290,488,506.94
  5. Step 5: Solve for x
    x = 37,290,488,506.94/218,924.98
  6. Step 6: Final answer
    x = 170,334.55

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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.