Home / 379,857.79-524,145.56-218,681.69

Finding the Fourth Proportional to 379,857.79, 524,145.56 and 218,681.69

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Solution

The fourth proportional to 379,857.79, 524,145.56 and 218,681.69 is: 301,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,857.79 : 524,145.56 = 218,681.69 : x
  2. Step 2: Convert to fraction form
    379,857.79/524,145.56 = 218,681.69/x
  3. Step 3: Cross multiply
    379,857.79x = 524,145.56 × 218,681.69
  4. Step 4: Simplify right side
    379,857.79x = 114,621,036,716.02
  5. Step 5: Solve for x
    x = 114,621,036,716.02/379,857.79
  6. Step 6: Final answer
    x = 301,747.24

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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.