Home / 328,209.30-492,314.04-103,587.26

Finding the Fourth Proportional to 328,209.30, 492,314.04 and 103,587.26

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Solution

The fourth proportional to 328,209.30, 492,314.04 and 103,587.26 is: 155,380.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,209.30 : 492,314.04 = 103,587.26 : x
  2. Step 2: Convert to fraction form
    328,209.30/492,314.04 = 103,587.26/x
  3. Step 3: Cross multiply
    328,209.30x = 492,314.04 × 103,587.26
  4. Step 4: Simplify right side
    328,209.30x = 50,997,460,001.56
  5. Step 5: Solve for x
    x = 50,997,460,001.56/328,209.30
  6. Step 6: Final answer
    x = 155,380.91

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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.