Home / 357,051.22-492,282.30-261,391.84

Finding the Fourth Proportional to 357,051.22, 492,282.30 and 261,391.84

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Solution

The fourth proportional to 357,051.22, 492,282.30 and 261,391.84 is: 360,392.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,051.22 : 492,282.30 = 261,391.84 : x
  2. Step 2: Convert to fraction form
    357,051.22/492,282.30 = 261,391.84/x
  3. Step 3: Cross multiply
    357,051.22x = 492,282.30 × 261,391.84
  4. Step 4: Simplify right side
    357,051.22x = 128,678,576,196.43
  5. Step 5: Solve for x
    x = 128,678,576,196.43/357,051.22
  6. Step 6: Final answer
    x = 360,392.48

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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.