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Finding the Fourth Proportional to 210,297.88, 290,211.54 and 114,804.60

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Solution

The fourth proportional to 210,297.88, 290,211.54 and 114,804.60 is: 158,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,297.88 : 290,211.54 = 114,804.60 : x
  2. Step 2: Convert to fraction form
    210,297.88/290,211.54 = 114,804.60/x
  3. Step 3: Cross multiply
    210,297.88x = 290,211.54 × 114,804.60
  4. Step 4: Simplify right side
    210,297.88x = 33,317,619,765.08
  5. Step 5: Solve for x
    x = 33,317,619,765.08/210,297.88
  6. Step 6: Final answer
    x = 158,430.60

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1.5x scale

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.