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Finding the Fourth Proportional to 329,243.40, 493,865.10 and 79,925.40

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Solution

The fourth proportional to 329,243.40, 493,865.10 and 79,925.40 is: 119,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,243.40 : 493,865.10 = 79,925.40 : x
  2. Step 2: Convert to fraction form
    329,243.40/493,865.10 = 79,925.40/x
  3. Step 3: Cross multiply
    329,243.40x = 493,865.10 × 79,925.40
  4. Step 4: Simplify right side
    329,243.40x = 39,472,365,663.54
  5. Step 5: Solve for x
    x = 39,472,365,663.54/329,243.40
  6. Step 6: Final answer
    x = 119,888.10

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Similar ratio
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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.