Home / 210,456.40-290,436.08-114,964.68

Finding the Fourth Proportional to 210,456.40, 290,436.08 and 114,964.68

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Solution

The fourth proportional to 210,456.40, 290,436.08 and 114,964.68 is: 158,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,456.40 : 290,436.08 = 114,964.68 : x
  2. Step 2: Convert to fraction form
    210,456.40/290,436.08 = 114,964.68/x
  3. Step 3: Cross multiply
    210,456.40x = 290,436.08 × 114,964.68
  4. Step 4: Simplify right side
    210,456.40x = 33,389,890,997.65
  5. Step 5: Solve for x
    x = 33,389,890,997.65/210,456.40
  6. Step 6: Final answer
    x = 158,654.67

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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.