Home / 358,928.80-495,319.44-197,785.12

Finding the Fourth Proportional to 358,928.80, 495,319.44 and 197,785.12

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Solution

The fourth proportional to 358,928.80, 495,319.44 and 197,785.12 is: 272,942.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,928.80 : 495,319.44 = 197,785.12 : x
  2. Step 2: Convert to fraction form
    358,928.80/495,319.44 = 197,785.12/x
  3. Step 3: Cross multiply
    358,928.80x = 495,319.44 × 197,785.12
  4. Step 4: Simplify right side
    358,928.80x = 97,966,814,878.73
  5. Step 5: Solve for x
    x = 97,966,814,878.73/358,928.80
  6. Step 6: Final answer
    x = 272,942.20

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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.