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Finding the Fourth Proportional to 329,776.90, 494,501.55 and 105,108.10

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Solution

The fourth proportional to 329,776.90, 494,501.55 and 105,108.10 is: 157,609.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,776.90 : 494,501.55 = 105,108.10 : x
  2. Step 2: Convert to fraction form
    329,776.90/494,501.55 = 105,108.10/x
  3. Step 3: Cross multiply
    329,776.90x = 494,501.55 × 105,108.10
  4. Step 4: Simplify right side
    329,776.90x = 51,976,118,367.56
  5. Step 5: Solve for x
    x = 51,976,118,367.56/329,776.90
  6. Step 6: Final answer
    x = 157,609.94

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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.