Home / 316,721.15-437,118.67-194,191.86

Finding the Fourth Proportional to 316,721.15, 437,118.67 and 194,191.86

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Solution

The fourth proportional to 316,721.15, 437,118.67 and 194,191.86 is: 268,011.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,721.15 : 437,118.67 = 194,191.86 : x
  2. Step 2: Convert to fraction form
    316,721.15/437,118.67 = 194,191.86/x
  3. Step 3: Cross multiply
    316,721.15x = 437,118.67 × 194,191.86
  4. Step 4: Simplify right side
    316,721.15x = 84,884,885,382.43
  5. Step 5: Solve for x
    x = 84,884,885,382.43/316,721.15
  6. Step 6: Final answer
    x = 268,011.42

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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.