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Finding the Fourth Proportional to 200,004.70, 300,007.05 and 189,118.30

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Solution

The fourth proportional to 200,004.70, 300,007.05 and 189,118.30 is: 283,677.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,004.70 : 300,007.05 = 189,118.30 : x
  2. Step 2: Convert to fraction form
    200,004.70/300,007.05 = 189,118.30/x
  3. Step 3: Cross multiply
    200,004.70x = 300,007.05 × 189,118.30
  4. Step 4: Simplify right side
    200,004.70x = 56,736,823,284.02
  5. Step 5: Solve for x
    x = 56,736,823,284.02/200,004.70
  6. Step 6: Final answer
    x = 283,677.45

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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.