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Finding the Fourth Proportional to 365,039.40, 548,378.30 and 254,447.40

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Solution

The fourth proportional to 365,039.40, 548,378.30 and 254,447.40 is: 382,242.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,039.40 : 548,378.30 = 254,447.40 : x
  2. Step 2: Convert to fraction form
    365,039.40/548,378.30 = 254,447.40/x
  3. Step 3: Cross multiply
    365,039.40x = 548,378.30 × 254,447.40
  4. Step 4: Simplify right side
    365,039.40x = 139,533,432,651.42
  5. Step 5: Solve for x
    x = 139,533,432,651.42/365,039.40
  6. Step 6: Final answer
    x = 382,242.12

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1.5x scale

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.