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Finding the Fourth Proportional to 162,821.20, 244,231.80 and 122,904.40

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Solution

The fourth proportional to 162,821.20, 244,231.80 and 122,904.40 is: 184,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,821.20 : 244,231.80 = 122,904.40 : x
  2. Step 2: Convert to fraction form
    162,821.20/244,231.80 = 122,904.40/x
  3. Step 3: Cross multiply
    162,821.20x = 244,231.80 × 122,904.40
  4. Step 4: Simplify right side
    162,821.20x = 30,017,162,839.92
  5. Step 5: Solve for x
    x = 30,017,162,839.92/162,821.20
  6. Step 6: Final answer
    x = 184,356.60

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1.5x scale

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.