Home / 210,546.72-290,526.48-135,197.28

Finding the Fourth Proportional to 210,546.72, 290,526.48 and 135,197.28

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Solution

The fourth proportional to 210,546.72, 290,526.48 and 135,197.28 is: 186,554.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,546.72 : 290,526.48 = 135,197.28 : x
  2. Step 2: Convert to fraction form
    210,546.72/290,526.48 = 135,197.28/x
  3. Step 3: Cross multiply
    210,546.72x = 290,526.48 × 135,197.28
  4. Step 4: Simplify right side
    210,546.72x = 39,278,389,863.97
  5. Step 5: Solve for x
    x = 39,278,389,863.97/210,546.72
  6. Step 6: Final answer
    x = 186,554.27

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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.