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Finding the Fourth Proportional to 163,954.20, 245,931.30 and 162,917.40

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Solution

The fourth proportional to 163,954.20, 245,931.30 and 162,917.40 is: 244,376.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,954.20 : 245,931.30 = 162,917.40 : x
  2. Step 2: Convert to fraction form
    163,954.20/245,931.30 = 162,917.40/x
  3. Step 3: Cross multiply
    163,954.20x = 245,931.30 × 162,917.40
  4. Step 4: Simplify right side
    163,954.20x = 40,066,487,974.62
  5. Step 5: Solve for x
    x = 40,066,487,974.62/163,954.20
  6. Step 6: Final answer
    x = 244,376.10

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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.