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Finding the Fourth Proportional to 210,237.68, 290,125.80 and 114,743.60

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Solution

The fourth proportional to 210,237.68, 290,125.80 and 114,743.60 is: 158,344.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,237.68 : 290,125.80 = 114,743.60 : x
  2. Step 2: Convert to fraction form
    210,237.68/290,125.80 = 114,743.60/x
  3. Step 3: Cross multiply
    210,237.68x = 290,125.80 × 114,743.60
  4. Step 4: Simplify right side
    210,237.68x = 33,290,078,744.88
  5. Step 5: Solve for x
    x = 33,290,078,744.88/210,237.68
  6. Step 6: Final answer
    x = 158,344.97

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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.