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Finding the Fourth Proportional to 318,292.80, 439,222.68 and 182,327.28

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Solution

The fourth proportional to 318,292.80, 439,222.68 and 182,327.28 is: 251,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,292.80 : 439,222.68 = 182,327.28 : x
  2. Step 2: Convert to fraction form
    318,292.80/439,222.68 = 182,327.28/x
  3. Step 3: Cross multiply
    318,292.80x = 439,222.68 × 182,327.28
  4. Step 4: Simplify right side
    318,292.80x = 80,082,276,558.71
  5. Step 5: Solve for x
    x = 80,082,276,558.71/318,292.80
  6. Step 6: Final answer
    x = 251,599.40

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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.