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Finding the Fourth Proportional to 360,170.10, 497,435.85 and 279,474.03

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Solution

The fourth proportional to 360,170.10, 497,435.85 and 279,474.03 is: 385,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,170.10 : 497,435.85 = 279,474.03 : x
  2. Step 2: Convert to fraction form
    360,170.10/497,435.85 = 279,474.03/x
  3. Step 3: Cross multiply
    360,170.10x = 497,435.85 × 279,474.03
  4. Step 4: Simplify right side
    360,170.10x = 139,020,401,665.98
  5. Step 5: Solve for x
    x = 139,020,401,665.98/360,170.10
  6. Step 6: Final answer
    x = 385,985.40

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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.