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Finding the Fourth Proportional to 318,402.28, 439,398.77 and 182,433.50

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Solution

The fourth proportional to 318,402.28, 439,398.77 and 182,433.50 is: 251,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,402.28 : 439,398.77 = 182,433.50 : x
  2. Step 2: Convert to fraction form
    318,402.28/439,398.77 = 182,433.50/x
  3. Step 3: Cross multiply
    318,402.28x = 439,398.77 × 182,433.50
  4. Step 4: Simplify right side
    318,402.28x = 80,161,054,931.82
  5. Step 5: Solve for x
    x = 80,161,054,931.82/318,402.28
  6. Step 6: Final answer
    x = 251,760.30

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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.