Home / 399,281.33-550,588.74-263,141.12

Finding the Fourth Proportional to 399,281.33, 550,588.74 and 263,141.12

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Solution

The fourth proportional to 399,281.33, 550,588.74 and 263,141.12 is: 362,858.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,281.33 : 550,588.74 = 263,141.12 : x
  2. Step 2: Convert to fraction form
    399,281.33/550,588.74 = 263,141.12/x
  3. Step 3: Cross multiply
    399,281.33x = 550,588.74 × 263,141.12
  4. Step 4: Simplify right side
    399,281.33x = 144,882,534,950.05
  5. Step 5: Solve for x
    x = 144,882,534,950.05/399,281.33
  6. Step 6: Final answer
    x = 362,858.28

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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.