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Finding the Fourth Proportional to 303,452.60, 455,033.50 and 143,395.32

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Solution

The fourth proportional to 303,452.60, 455,033.50 and 143,395.32 is: 215,024.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,452.60 : 455,033.50 = 143,395.32 : x
  2. Step 2: Convert to fraction form
    303,452.60/455,033.50 = 143,395.32/x
  3. Step 3: Cross multiply
    303,452.60x = 455,033.50 × 143,395.32
  4. Step 4: Simplify right side
    303,452.60x = 65,249,674,343.22
  5. Step 5: Solve for x
    x = 65,249,674,343.22/303,452.60
  6. Step 6: Final answer
    x = 215,024.27

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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.