Home / 458,758.10-688,137.24-143,242.04

Finding the Fourth Proportional to 458,758.10, 688,137.24 and 143,242.04

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Solution

The fourth proportional to 458,758.10, 688,137.24 and 143,242.04 is: 214,863.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,758.10 : 688,137.24 = 143,242.04 : x
  2. Step 2: Convert to fraction form
    458,758.10/688,137.24 = 143,242.04/x
  3. Step 3: Cross multiply
    458,758.10x = 688,137.24 × 143,242.04
  4. Step 4: Simplify right side
    458,758.10x = 98,570,182,057.57
  5. Step 5: Solve for x
    x = 98,570,182,057.57/458,758.10
  6. Step 6: Final answer
    x = 214,863.09

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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.