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Finding the Fourth Proportional to 340,709.80, 510,080.55 and 330,868.30

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Solution

The fourth proportional to 340,709.80, 510,080.55 and 330,868.30 is: 495,346.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,709.80 : 510,080.55 = 330,868.30 : x
  2. Step 2: Convert to fraction form
    340,709.80/510,080.55 = 330,868.30/x
  3. Step 3: Cross multiply
    340,709.80x = 510,080.55 × 330,868.30
  4. Step 4: Simplify right side
    340,709.80x = 168,769,484,441.57
  5. Step 5: Solve for x
    x = 168,769,484,441.57/340,709.80
  6. Step 6: Final answer
    x = 495,346.73

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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.