Home / 442,962.72-664,549.92-143,443.64

Finding the Fourth Proportional to 442,962.72, 664,549.92 and 143,443.64

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Solution

The fourth proportional to 442,962.72, 664,549.92 and 143,443.64 is: 215,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,962.72 : 664,549.92 = 143,443.64 : x
  2. Step 2: Convert to fraction form
    442,962.72/664,549.92 = 143,443.64/x
  3. Step 3: Cross multiply
    442,962.72x = 664,549.92 × 143,443.64
  4. Step 4: Simplify right side
    442,962.72x = 95,325,459,486.51
  5. Step 5: Solve for x
    x = 95,325,459,486.51/442,962.72
  6. Step 6: Final answer
    x = 215,199.73

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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.