Home / 218,423.66-327,518.04-128,497.46

Finding the Fourth Proportional to 218,423.66, 327,518.04 and 128,497.46

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Solution

The fourth proportional to 218,423.66, 327,518.04 and 128,497.46 is: 192,677.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,423.66 : 327,518.04 = 128,497.46 : x
  2. Step 2: Convert to fraction form
    218,423.66/327,518.04 = 128,497.46/x
  3. Step 3: Cross multiply
    218,423.66x = 327,518.04 × 128,497.46
  4. Step 4: Simplify right side
    218,423.66x = 42,085,236,244.18
  5. Step 5: Solve for x
    x = 42,085,236,244.18/218,423.66
  6. Step 6: Final answer
    x = 192,677.09

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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.