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Finding the Fourth Proportional to 443,599.65, 665,156.48 and 218,465.01

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Solution

The fourth proportional to 443,599.65, 665,156.48 and 218,465.01 is: 327,577.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,599.65 : 665,156.48 = 218,465.01 : x
  2. Step 2: Convert to fraction form
    443,599.65/665,156.48 = 218,465.01/x
  3. Step 3: Cross multiply
    443,599.65x = 665,156.48 × 218,465.01
  4. Step 4: Simplify right side
    443,599.65x = 145,313,415,962.44
  5. Step 5: Solve for x
    x = 145,313,415,962.44/443,599.65
  6. Step 6: Final answer
    x = 327,577.84

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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.