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Finding the Fourth Proportional to 347,380.80, 521,119.80 and 147,699.60

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Solution

The fourth proportional to 347,380.80, 521,119.80 and 147,699.60 is: 221,570.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,380.80 : 521,119.80 = 147,699.60 : x
  2. Step 2: Convert to fraction form
    347,380.80/521,119.80 = 147,699.60/x
  3. Step 3: Cross multiply
    347,380.80x = 521,119.80 × 147,699.60
  4. Step 4: Simplify right side
    347,380.80x = 76,969,186,012.08
  5. Step 5: Solve for x
    x = 76,969,186,012.08/347,380.80
  6. Step 6: Final answer
    x = 221,570.06

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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.