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Finding the Fourth Proportional to 336,909.80, 505,364.70 and 248,336.30

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Solution

The fourth proportional to 336,909.80, 505,364.70 and 248,336.30 is: 372,504.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,909.80 : 505,364.70 = 248,336.30 : x
  2. Step 2: Convert to fraction form
    336,909.80/505,364.70 = 248,336.30/x
  3. Step 3: Cross multiply
    336,909.80x = 505,364.70 × 248,336.30
  4. Step 4: Simplify right side
    336,909.80x = 125,500,399,748.61
  5. Step 5: Solve for x
    x = 125,500,399,748.61/336,909.80
  6. Step 6: Final answer
    x = 372,504.45

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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.