Home / 347,449.20-521,173.80-236,857.20

Finding the Fourth Proportional to 347,449.20, 521,173.80 and 236,857.20

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Solution

The fourth proportional to 347,449.20, 521,173.80 and 236,857.20 is: 355,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,449.20 : 521,173.80 = 236,857.20 : x
  2. Step 2: Convert to fraction form
    347,449.20/521,173.80 = 236,857.20/x
  3. Step 3: Cross multiply
    347,449.20x = 521,173.80 × 236,857.20
  4. Step 4: Simplify right side
    347,449.20x = 123,443,766,981.36
  5. Step 5: Solve for x
    x = 123,443,766,981.36/347,449.20
  6. Step 6: Final answer
    x = 355,285.80

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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.