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Finding the Fourth Proportional to 318,741.56, 439,879.52 and 180,930.19

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Solution

The fourth proportional to 318,741.56, 439,879.52 and 180,930.19 is: 249,692.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,741.56 : 439,879.52 = 180,930.19 : x
  2. Step 2: Convert to fraction form
    318,741.56/439,879.52 = 180,930.19/x
  3. Step 3: Cross multiply
    318,741.56x = 439,879.52 × 180,930.19
  4. Step 4: Simplify right side
    318,741.56x = 79,587,485,130.71
  5. Step 5: Solve for x
    x = 79,587,485,130.71/318,741.56
  6. Step 6: Final answer
    x = 249,692.84

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1.5x scale

Why These Related Problems?

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