Home / 210,597.03-290,624.13-115,103.79

Finding the Fourth Proportional to 210,597.03, 290,624.13 and 115,103.79

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Solution

The fourth proportional to 210,597.03, 290,624.13 and 115,103.79 is: 158,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,597.03 : 290,624.13 = 115,103.79 : x
  2. Step 2: Convert to fraction form
    210,597.03/290,624.13 = 115,103.79/x
  3. Step 3: Cross multiply
    210,597.03x = 290,624.13 × 115,103.79
  4. Step 4: Simplify right side
    210,597.03x = 33,451,938,828.45
  5. Step 5: Solve for x
    x = 33,451,938,828.45/210,597.03
  6. Step 6: Final answer
    x = 158,843.36

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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.