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Finding the Fourth Proportional to 309,200.40, 463,800.60 and 239,216.40

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Solution

The fourth proportional to 309,200.40, 463,800.60 and 239,216.40 is: 358,824.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,200.40 : 463,800.60 = 239,216.40 : x
  2. Step 2: Convert to fraction form
    309,200.40/463,800.60 = 239,216.40/x
  3. Step 3: Cross multiply
    309,200.40x = 463,800.60 × 239,216.40
  4. Step 4: Simplify right side
    309,200.40x = 110,948,709,849.84
  5. Step 5: Solve for x
    x = 110,948,709,849.84/309,200.40
  6. Step 6: Final answer
    x = 358,824.60

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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.