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Finding the Fourth Proportional to 318,490.62, 439,466.82 and 182,498.40

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Solution

The fourth proportional to 318,490.62, 439,466.82 and 182,498.40 is: 251,819.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,490.62 : 439,466.82 = 182,498.40 : x
  2. Step 2: Convert to fraction form
    318,490.62/439,466.82 = 182,498.40/x
  3. Step 3: Cross multiply
    318,490.62x = 439,466.82 × 182,498.40
  4. Step 4: Simplify right side
    318,490.62x = 80,201,991,503.09
  5. Step 5: Solve for x
    x = 80,201,991,503.09/318,490.62
  6. Step 6: Final answer
    x = 251,819.01

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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.