Home / 210,549.72-290,530.62-135,200.28

Finding the Fourth Proportional to 210,549.72, 290,530.62 and 135,200.28

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Solution

The fourth proportional to 210,549.72, 290,530.62 and 135,200.28 is: 186,558.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,549.72 : 290,530.62 = 135,200.28 : x
  2. Step 2: Convert to fraction form
    210,549.72/290,530.62 = 135,200.28/x
  3. Step 3: Cross multiply
    210,549.72x = 290,530.62 × 135,200.28
  4. Step 4: Simplify right side
    210,549.72x = 39,279,821,172.57
  5. Step 5: Solve for x
    x = 39,279,821,172.57/210,549.72
  6. Step 6: Final answer
    x = 186,558.41

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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.