Home / 379,931.70-524,260.08-218,839.14

Finding the Fourth Proportional to 379,931.70, 524,260.08 and 218,839.14

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Solution

The fourth proportional to 379,931.70, 524,260.08 and 218,839.14 is: 301,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,931.70 : 524,260.08 = 218,839.14 : x
  2. Step 2: Convert to fraction form
    379,931.70/524,260.08 = 218,839.14/x
  3. Step 3: Cross multiply
    379,931.70x = 524,260.08 × 218,839.14
  4. Step 4: Simplify right side
    379,931.70x = 114,728,625,043.53
  5. Step 5: Solve for x
    x = 114,728,625,043.53/379,931.70
  6. Step 6: Final answer
    x = 301,971.71

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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.