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Finding the Fourth Proportional to 303,452.30, 455,032.93 and 143,395.01

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Solution

The fourth proportional to 303,452.30, 455,032.93 and 143,395.01 is: 215,023.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,452.30 : 455,032.93 = 143,395.01 : x
  2. Step 2: Convert to fraction form
    303,452.30/455,032.93 = 143,395.01/x
  3. Step 3: Cross multiply
    303,452.30x = 455,032.93 × 143,395.01
  4. Step 4: Simplify right side
    303,452.30x = 65,249,451,547.68
  5. Step 5: Solve for x
    x = 65,249,451,547.68/303,452.30
  6. Step 6: Final answer
    x = 215,023.75

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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.