Home / 427,360.38-641,074.28-143,052.60

Finding the Fourth Proportional to 427,360.38, 641,074.28 and 143,052.60

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Solution

The fourth proportional to 427,360.38, 641,074.28 and 143,052.60 is: 214,590.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,360.38 : 641,074.28 = 143,052.60 : x
  2. Step 2: Convert to fraction form
    427,360.38/641,074.28 = 143,052.60/x
  3. Step 3: Cross multiply
    427,360.38x = 641,074.28 × 143,052.60
  4. Step 4: Simplify right side
    427,360.38x = 91,707,342,547.13
  5. Step 5: Solve for x
    x = 91,707,342,547.13/427,360.38
  6. Step 6: Final answer
    x = 214,590.18

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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.