Home / 210,939.39-316,782.70-202,221.16

Finding the Fourth Proportional to 210,939.39, 316,782.70 and 202,221.16

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Solution

The fourth proportional to 210,939.39, 316,782.70 and 202,221.16 is: 303,689.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,939.39 : 316,782.70 = 202,221.16 : x
  2. Step 2: Convert to fraction form
    210,939.39/316,782.70 = 202,221.16/x
  3. Step 3: Cross multiply
    210,939.39x = 316,782.70 × 202,221.16
  4. Step 4: Simplify right side
    210,939.39x = 64,060,163,764.42
  5. Step 5: Solve for x
    x = 64,060,163,764.42/210,939.39
  6. Step 6: Final answer
    x = 303,689.91

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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.