Home / 505,175.40-757,756.62-145,355.04

Finding the Fourth Proportional to 505,175.40, 757,756.62 and 145,355.04

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Solution

The fourth proportional to 505,175.40, 757,756.62 and 145,355.04 is: 218,030.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,175.40 : 757,756.62 = 145,355.04 : x
  2. Step 2: Convert to fraction form
    505,175.40/757,756.62 = 145,355.04/x
  3. Step 3: Cross multiply
    505,175.40x = 757,756.62 × 145,355.04
  4. Step 4: Simplify right side
    505,175.40x = 110,143,743,810.37
  5. Step 5: Solve for x
    x = 110,143,743,810.37/505,175.40
  6. Step 6: Final answer
    x = 218,030.70

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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.