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Finding the Fourth Proportional to 329,320.60, 493,980.90 and 118,965.40

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Solution

The fourth proportional to 329,320.60, 493,980.90 and 118,965.40 is: 178,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,320.60 : 493,980.90 = 118,965.40 : x
  2. Step 2: Convert to fraction form
    329,320.60/493,980.90 = 118,965.40/x
  3. Step 3: Cross multiply
    329,320.60x = 493,980.90 × 118,965.40
  4. Step 4: Simplify right side
    329,320.60x = 58,766,635,360.86
  5. Step 5: Solve for x
    x = 58,766,635,360.86/329,320.60
  6. Step 6: Final answer
    x = 178,448.10

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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.