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Finding the Fourth Proportional to 318,258.63, 439,072.61 and 182,219.87

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Solution

The fourth proportional to 318,258.63, 439,072.61 and 182,219.87 is: 251,392.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,258.63 : 439,072.61 = 182,219.87 : x
  2. Step 2: Convert to fraction form
    318,258.63/439,072.61 = 182,219.87/x
  3. Step 3: Cross multiply
    318,258.63x = 439,072.61 × 182,219.87
  4. Step 4: Simplify right side
    318,258.63x = 80,007,754,101.34
  5. Step 5: Solve for x
    x = 80,007,754,101.34/318,258.63
  6. Step 6: Final answer
    x = 251,392.25

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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.