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Finding the Fourth Proportional to 351,438.12, 484,992.90 and 200,549.16

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Solution

The fourth proportional to 351,438.12, 484,992.90 and 200,549.16 is: 276,762.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,438.12 : 484,992.90 = 200,549.16 : x
  2. Step 2: Convert to fraction form
    351,438.12/484,992.90 = 200,549.16/x
  3. Step 3: Cross multiply
    351,438.12x = 484,992.90 × 200,549.16
  4. Step 4: Simplify right side
    351,438.12x = 97,264,918,700.96
  5. Step 5: Solve for x
    x = 97,264,918,700.96/351,438.12
  6. Step 6: Final answer
    x = 276,762.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.