Home / 328,328.80-492,522-240,673.12

Finding the Fourth Proportional to 328,328.80, 492,522 and 240,673.12

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Solution

The fourth proportional to 328,328.80, 492,522 and 240,673.12 is: 361,030.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,328.80 : 492,522 = 240,673.12 : x
  2. Step 2: Convert to fraction form
    328,328.80/492,522 = 240,673.12/x
  3. Step 3: Cross multiply
    328,328.80x = 492,522 × 240,673.12
  4. Step 4: Simplify right side
    328,328.80x = 118,536,806,408.64
  5. Step 5: Solve for x
    x = 118,536,806,408.64/328,328.80
  6. Step 6: Final answer
    x = 361,030.79

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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.