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Finding the Fourth Proportional to 210,236.40, 290,126.48 and 114,743.07

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Solution

The fourth proportional to 210,236.40, 290,126.48 and 114,743.07 is: 158,345.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,236.40 : 290,126.48 = 114,743.07 : x
  2. Step 2: Convert to fraction form
    210,236.40/290,126.48 = 114,743.07/x
  3. Step 3: Cross multiply
    210,236.40x = 290,126.48 × 114,743.07
  4. Step 4: Simplify right side
    210,236.40x = 33,290,002,429.78
  5. Step 5: Solve for x
    x = 33,290,002,429.78/210,236.40
  6. Step 6: Final answer
    x = 158,345.57

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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.