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Finding the Fourth Proportional to 336,015.40, 504,023.10 and 309,188.20

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Solution

The fourth proportional to 336,015.40, 504,023.10 and 309,188.20 is: 463,782.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,015.40 : 504,023.10 = 309,188.20 : x
  2. Step 2: Convert to fraction form
    336,015.40/504,023.10 = 309,188.20/x
  3. Step 3: Cross multiply
    336,015.40x = 504,023.10 × 309,188.20
  4. Step 4: Simplify right side
    336,015.40x = 155,837,995,047.42
  5. Step 5: Solve for x
    x = 155,837,995,047.42/336,015.40
  6. Step 6: Final answer
    x = 463,782.30

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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.