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Finding the Fourth Proportional to 354,066.37, 488,811.84 and 245,328.73

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Solution

The fourth proportional to 354,066.37, 488,811.84 and 245,328.73 is: 338,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,066.37 : 488,811.84 = 245,328.73 : x
  2. Step 2: Convert to fraction form
    354,066.37/488,811.84 = 245,328.73/x
  3. Step 3: Cross multiply
    354,066.37x = 488,811.84 × 245,328.73
  4. Step 4: Simplify right side
    354,066.37x = 119,919,587,916.16
  5. Step 5: Solve for x
    x = 119,919,587,916.16/354,066.37
  6. Step 6: Final answer
    x = 338,692.40

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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.