Home / 210,630.78-290,674.98-115,146.36

Finding the Fourth Proportional to 210,630.78, 290,674.98 and 115,146.36

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Solution

The fourth proportional to 210,630.78, 290,674.98 and 115,146.36 is: 158,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,630.78 : 290,674.98 = 115,146.36 : x
  2. Step 2: Convert to fraction form
    210,630.78/290,674.98 = 115,146.36/x
  3. Step 3: Cross multiply
    210,630.78x = 290,674.98 × 115,146.36
  4. Step 4: Simplify right side
    210,630.78x = 33,470,165,890.07
  5. Step 5: Solve for x
    x = 33,470,165,890.07/210,630.78
  6. Step 6: Final answer
    x = 158,904.44

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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.