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Finding the Fourth Proportional to 318,333.68, 439,291.85 and 180,537.90

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Solution

The fourth proportional to 318,333.68, 439,291.85 and 180,537.90 is: 249,137.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,333.68 : 439,291.85 = 180,537.90 : x
  2. Step 2: Convert to fraction form
    318,333.68/439,291.85 = 180,537.90/x
  3. Step 3: Cross multiply
    318,333.68x = 439,291.85 × 180,537.90
  4. Step 4: Simplify right side
    318,333.68x = 79,308,828,086.12
  5. Step 5: Solve for x
    x = 79,308,828,086.12/318,333.68
  6. Step 6: Final answer
    x = 249,137.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.