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Finding the Fourth Proportional to 329,099.20, 493,648.80 and 188,742.40

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Solution

The fourth proportional to 329,099.20, 493,648.80 and 188,742.40 is: 283,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,099.20 : 493,648.80 = 188,742.40 : x
  2. Step 2: Convert to fraction form
    329,099.20/493,648.80 = 188,742.40/x
  3. Step 3: Cross multiply
    329,099.20x = 493,648.80 × 188,742.40
  4. Step 4: Simplify right side
    329,099.20x = 93,172,459,269.12
  5. Step 5: Solve for x
    x = 93,172,459,269.12/329,099.20
  6. Step 6: Final answer
    x = 283,113.60

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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.