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Finding the Fourth Proportional to 300,657.60, 450,986.40 and 194,369.40

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Solution

The fourth proportional to 300,657.60, 450,986.40 and 194,369.40 is: 291,554.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,657.60 : 450,986.40 = 194,369.40 : x
  2. Step 2: Convert to fraction form
    300,657.60/450,986.40 = 194,369.40/x
  3. Step 3: Cross multiply
    300,657.60x = 450,986.40 × 194,369.40
  4. Step 4: Simplify right side
    300,657.60x = 87,657,955,976.16
  5. Step 5: Solve for x
    x = 87,657,955,976.16/300,657.60
  6. Step 6: Final answer
    x = 291,554.10

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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.