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Finding the Fourth Proportional to 505,171.70, 757,101.44 and 205,303.32

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Solution

The fourth proportional to 505,171.70, 757,101.44 and 205,303.32 is: 307,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,171.70 : 757,101.44 = 205,303.32 : x
  2. Step 2: Convert to fraction form
    505,171.70/757,101.44 = 205,303.32/x
  3. Step 3: Cross multiply
    505,171.70x = 757,101.44 × 205,303.32
  4. Step 4: Simplify right side
    505,171.70x = 155,435,439,722.04
  5. Step 5: Solve for x
    x = 155,435,439,722.04/505,171.70
  6. Step 6: Final answer
    x = 307,688.34

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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.