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Finding the Fourth Proportional to 400,386.85, 600,162.01 and 133,928.24

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Solution

The fourth proportional to 400,386.85, 600,162.01 and 133,928.24 is: 200,752.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,386.85 : 600,162.01 = 133,928.24 : x
  2. Step 2: Convert to fraction form
    400,386.85/600,162.01 = 133,928.24/x
  3. Step 3: Cross multiply
    400,386.85x = 600,162.01 × 133,928.24
  4. Step 4: Simplify right side
    400,386.85x = 80,378,638,378.53
  5. Step 5: Solve for x
    x = 80,378,638,378.53/400,386.85
  6. Step 6: Final answer
    x = 200,752.44

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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.