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Finding the Fourth Proportional to 336,803.70, 464,840.19 and 209,520.30

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Solution

The fourth proportional to 336,803.70, 464,840.19 and 209,520.30 is: 289,169.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,803.70 : 464,840.19 = 209,520.30 : x
  2. Step 2: Convert to fraction form
    336,803.70/464,840.19 = 209,520.30/x
  3. Step 3: Cross multiply
    336,803.70x = 464,840.19 × 209,520.30
  4. Step 4: Simplify right side
    336,803.70x = 97,393,456,060.86
  5. Step 5: Solve for x
    x = 97,393,456,060.86/336,803.70
  6. Step 6: Final answer
    x = 289,169.79

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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.