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Finding the Fourth Proportional to 210,954.24, 316,211.04 and 126,714.24

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Solution

The fourth proportional to 210,954.24, 316,211.04 and 126,714.24 is: 189,939.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,954.24 : 316,211.04 = 126,714.24 : x
  2. Step 2: Convert to fraction form
    210,954.24/316,211.04 = 126,714.24/x
  3. Step 3: Cross multiply
    210,954.24x = 316,211.04 × 126,714.24
  4. Step 4: Simplify right side
    210,954.24x = 40,068,441,613.21
  5. Step 5: Solve for x
    x = 40,068,441,613.21/210,954.24
  6. Step 6: Final answer
    x = 189,939.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.