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Finding the Fourth Proportional to 245,055.60, 367,583.40 and 120,639.60

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Solution

The fourth proportional to 245,055.60, 367,583.40 and 120,639.60 is: 180,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,055.60 : 367,583.40 = 120,639.60 : x
  2. Step 2: Convert to fraction form
    245,055.60/367,583.40 = 120,639.60/x
  3. Step 3: Cross multiply
    245,055.60x = 367,583.40 × 120,639.60
  4. Step 4: Simplify right side
    245,055.60x = 44,345,114,342.64
  5. Step 5: Solve for x
    x = 44,345,114,342.64/245,055.60
  6. Step 6: Final answer
    x = 180,959.40

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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.