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Finding the Fourth Proportional to 259,661.40, 389,492.10 and 245,883.30

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Solution

The fourth proportional to 259,661.40, 389,492.10 and 245,883.30 is: 368,824.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,661.40 : 389,492.10 = 245,883.30 : x
  2. Step 2: Convert to fraction form
    259,661.40/389,492.10 = 245,883.30/x
  3. Step 3: Cross multiply
    259,661.40x = 389,492.10 × 245,883.30
  4. Step 4: Simplify right side
    259,661.40x = 95,769,602,871.93
  5. Step 5: Solve for x
    x = 95,769,602,871.93/259,661.40
  6. Step 6: Final answer
    x = 368,824.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.