Home / 281,782.47-388,899.63-174,387.09

Finding the Fourth Proportional to 281,782.47, 388,899.63 and 174,387.09

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Solution

The fourth proportional to 281,782.47, 388,899.63 and 174,387.09 is: 240,678.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,782.47 : 388,899.63 = 174,387.09 : x
  2. Step 2: Convert to fraction form
    281,782.47/388,899.63 = 174,387.09/x
  3. Step 3: Cross multiply
    281,782.47x = 388,899.63 × 174,387.09
  4. Step 4: Simplify right side
    281,782.47x = 67,819,074,777.78
  5. Step 5: Solve for x
    x = 67,819,074,777.78/281,782.47
  6. Step 6: Final answer
    x = 240,678.83

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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.