Home / 328,779.36-492,991.33-115,492.18

Finding the Fourth Proportional to 328,779.36, 492,991.33 and 115,492.18

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Solution

The fourth proportional to 328,779.36, 492,991.33 and 115,492.18 is: 173,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,779.36 : 492,991.33 = 115,492.18 : x
  2. Step 2: Convert to fraction form
    328,779.36/492,991.33 = 115,492.18/x
  3. Step 3: Cross multiply
    328,779.36x = 492,991.33 × 115,492.18
  4. Step 4: Simplify right side
    328,779.36x = 56,936,643,422.80
  5. Step 5: Solve for x
    x = 56,936,643,422.80/328,779.36
  6. Step 6: Final answer
    x = 173,175.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.