Home / 210,900.27-291,042.36-115,406.97

Finding the Fourth Proportional to 210,900.27, 291,042.36 and 115,406.97

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Solution

The fourth proportional to 210,900.27, 291,042.36 and 115,406.97 is: 159,261.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,900.27 : 291,042.36 = 115,406.97 : x
  2. Step 2: Convert to fraction form
    210,900.27/291,042.36 = 115,406.97/x
  3. Step 3: Cross multiply
    210,900.27x = 291,042.36 × 115,406.97
  4. Step 4: Simplify right side
    210,900.27x = 33,588,316,909.25
  5. Step 5: Solve for x
    x = 33,588,316,909.25/210,900.27
  6. Step 6: Final answer
    x = 159,261.61

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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.