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Finding the Fourth Proportional to 200,004.40, 300,006.60 and 115,764.40

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Solution

The fourth proportional to 200,004.40, 300,006.60 and 115,764.40 is: 173,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,004.40 : 300,006.60 = 115,764.40 : x
  2. Step 2: Convert to fraction form
    200,004.40/300,006.60 = 115,764.40/x
  3. Step 3: Cross multiply
    200,004.40x = 300,006.60 × 115,764.40
  4. Step 4: Simplify right side
    200,004.40x = 34,730,084,045.04
  5. Step 5: Solve for x
    x = 34,730,084,045.04/200,004.40
  6. Step 6: Final answer
    x = 173,646.60

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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.