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Finding the Fourth Proportional to 383,486.40, 575,402.40 and 183,729.60

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Solution

The fourth proportional to 383,486.40, 575,402.40 and 183,729.60 is: 275,677.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,486.40 : 575,402.40 = 183,729.60 : x
  2. Step 2: Convert to fraction form
    383,486.40/575,402.40 = 183,729.60/x
  3. Step 3: Cross multiply
    383,486.40x = 575,402.40 × 183,729.60
  4. Step 4: Simplify right side
    383,486.40x = 105,718,452,791.04
  5. Step 5: Solve for x
    x = 105,718,452,791.04/383,486.40
  6. Step 6: Final answer
    x = 275,677.19

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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.