Home / 411,455.16-617,232.06-145,160.64

Finding the Fourth Proportional to 411,455.16, 617,232.06 and 145,160.64

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Solution

The fourth proportional to 411,455.16, 617,232.06 and 145,160.64 is: 217,758.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,455.16 : 617,232.06 = 145,160.64 : x
  2. Step 2: Convert to fraction form
    411,455.16/617,232.06 = 145,160.64/x
  3. Step 3: Cross multiply
    411,455.16x = 617,232.06 × 145,160.64
  4. Step 4: Simplify right side
    411,455.16x = 89,597,800,858.12
  5. Step 5: Solve for x
    x = 89,597,800,858.12/411,455.16
  6. Step 6: Final answer
    x = 217,758.36

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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.