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Finding the Fourth Proportional to 268,384.40, 402,576.60 and 179,910.80

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Solution

The fourth proportional to 268,384.40, 402,576.60 and 179,910.80 is: 269,866.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,384.40 : 402,576.60 = 179,910.80 : x
  2. Step 2: Convert to fraction form
    268,384.40/402,576.60 = 179,910.80/x
  3. Step 3: Cross multiply
    268,384.40x = 402,576.60 × 179,910.80
  4. Step 4: Simplify right side
    268,384.40x = 72,427,878,167.28
  5. Step 5: Solve for x
    x = 72,427,878,167.28/268,384.40
  6. Step 6: Final answer
    x = 269,866.20

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1.5x scale

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.