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Finding the Fourth Proportional to 344,315.80, 516,473.70 and 209,596.60

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Solution

The fourth proportional to 344,315.80, 516,473.70 and 209,596.60 is: 314,394.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,315.80 : 516,473.70 = 209,596.60 : x
  2. Step 2: Convert to fraction form
    344,315.80/516,473.70 = 209,596.60/x
  3. Step 3: Cross multiply
    344,315.80x = 516,473.70 × 209,596.60
  4. Step 4: Simplify right side
    344,315.80x = 108,251,131,509.42
  5. Step 5: Solve for x
    x = 108,251,131,509.42/344,315.80
  6. Step 6: Final answer
    x = 314,394.90

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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.