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Finding the Fourth Proportional to 358,954.82, 495,360.90 and 197,815.64

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Solution

The fourth proportional to 358,954.82, 495,360.90 and 197,815.64 is: 272,987.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,954.82 : 495,360.90 = 197,815.64 : x
  2. Step 2: Convert to fraction form
    358,954.82/495,360.90 = 197,815.64/x
  3. Step 3: Cross multiply
    358,954.82x = 495,360.90 × 197,815.64
  4. Step 4: Simplify right side
    358,954.82x = 97,990,133,464.48
  5. Step 5: Solve for x
    x = 97,990,133,464.48/358,954.82
  6. Step 6: Final answer
    x = 272,987.37

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1.5x scale

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.