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Finding the Fourth Proportional to 245,434.80, 368,155.60 and 161,730.80

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Solution

The fourth proportional to 245,434.80, 368,155.60 and 161,730.80 is: 242,598.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,434.80 : 368,155.60 = 161,730.80 : x
  2. Step 2: Convert to fraction form
    245,434.80/368,155.60 = 161,730.80/x
  3. Step 3: Cross multiply
    245,434.80x = 368,155.60 × 161,730.80
  4. Step 4: Simplify right side
    245,434.80x = 59,542,099,712.48
  5. Step 5: Solve for x
    x = 59,542,099,712.48/245,434.80
  6. Step 6: Final answer
    x = 242,598.44

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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.