Home / 210,534.85-290,534.61-115,039.36

Finding the Fourth Proportional to 210,534.85, 290,534.61 and 115,039.36

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Solution

The fourth proportional to 210,534.85, 290,534.61 and 115,039.36 is: 158,752.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,534.85 : 290,534.61 = 115,039.36 : x
  2. Step 2: Convert to fraction form
    210,534.85/290,534.61 = 115,039.36/x
  3. Step 3: Cross multiply
    210,534.85x = 290,534.61 × 115,039.36
  4. Step 4: Simplify right side
    210,534.85x = 33,422,915,592.25
  5. Step 5: Solve for x
    x = 33,422,915,592.25/210,534.85
  6. Step 6: Final answer
    x = 158,752.41

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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.