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Finding the Fourth Proportional to 490,205.62, 735,426.64 and 170,310.93

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Solution

The fourth proportional to 490,205.62, 735,426.64 and 170,310.93 is: 255,507.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,205.62 : 735,426.64 = 170,310.93 : x
  2. Step 2: Convert to fraction form
    490,205.62/735,426.64 = 170,310.93/x
  3. Step 3: Cross multiply
    490,205.62x = 735,426.64 × 170,310.93
  4. Step 4: Simplify right side
    490,205.62x = 125,251,195,430.95
  5. Step 5: Solve for x
    x = 125,251,195,430.95/490,205.62
  6. Step 6: Final answer
    x = 255,507.47

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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.