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Finding the Fourth Proportional to 279,506.52, 385,719.44 and 152,182.62

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Solution

The fourth proportional to 279,506.52, 385,719.44 and 152,182.62 is: 210,012.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,506.52 : 385,719.44 = 152,182.62 : x
  2. Step 2: Convert to fraction form
    279,506.52/385,719.44 = 152,182.62/x
  3. Step 3: Cross multiply
    279,506.52x = 385,719.44 × 152,182.62
  4. Step 4: Simplify right side
    279,506.52x = 58,699,794,203.22
  5. Step 5: Solve for x
    x = 58,699,794,203.22/279,506.52
  6. Step 6: Final answer
    x = 210,012.25

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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.