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Finding the Fourth Proportional to 370,245.60, 510,940.80 and 200,480.40

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Solution

The fourth proportional to 370,245.60, 510,940.80 and 200,480.40 is: 276,663.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,245.60 : 510,940.80 = 200,480.40 : x
  2. Step 2: Convert to fraction form
    370,245.60/510,940.80 = 200,480.40/x
  3. Step 3: Cross multiply
    370,245.60x = 510,940.80 × 200,480.40
  4. Step 4: Simplify right side
    370,245.60x = 102,433,615,960.32
  5. Step 5: Solve for x
    x = 102,433,615,960.32/370,245.60
  6. Step 6: Final answer
    x = 276,663.97

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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.