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Finding the Fourth Proportional to 317,676.52, 438,396.67 and 174,439.64

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Solution

The fourth proportional to 317,676.52, 438,396.67 and 174,439.64 is: 240,728.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,676.52 : 438,396.67 = 174,439.64 : x
  2. Step 2: Convert to fraction form
    317,676.52/438,396.67 = 174,439.64/x
  3. Step 3: Cross multiply
    317,676.52x = 438,396.67 × 174,439.64
  4. Step 4: Simplify right side
    317,676.52x = 76,473,756,140.06
  5. Step 5: Solve for x
    x = 76,473,756,140.06/317,676.52
  6. Step 6: Final answer
    x = 240,728.39

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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.