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Finding the Fourth Proportional to 329,071.40, 493,607.10 and 189,103.40

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Solution

The fourth proportional to 329,071.40, 493,607.10 and 189,103.40 is: 283,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,071.40 : 493,607.10 = 189,103.40 : x
  2. Step 2: Convert to fraction form
    329,071.40/493,607.10 = 189,103.40/x
  3. Step 3: Cross multiply
    329,071.40x = 493,607.10 × 189,103.40
  4. Step 4: Simplify right side
    329,071.40x = 93,342,780,874.14
  5. Step 5: Solve for x
    x = 93,342,780,874.14/329,071.40
  6. Step 6: Final answer
    x = 283,655.10

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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.