Home / 316,981.05-437,478.69-196,161.29

Finding the Fourth Proportional to 316,981.05, 437,478.69 and 196,161.29

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Solution

The fourth proportional to 316,981.05, 437,478.69 and 196,161.29 is: 270,730.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,981.05 : 437,478.69 = 196,161.29 : x
  2. Step 2: Convert to fraction form
    316,981.05/437,478.69 = 196,161.29/x
  3. Step 3: Cross multiply
    316,981.05x = 437,478.69 × 196,161.29
  4. Step 4: Simplify right side
    316,981.05x = 85,816,381,990.52
  5. Step 5: Solve for x
    x = 85,816,381,990.52/316,981.05
  6. Step 6: Final answer
    x = 270,730.32

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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.