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Finding the Fourth Proportional to 298,601.40, 447,902.10 and 158,287.80

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Solution

The fourth proportional to 298,601.40, 447,902.10 and 158,287.80 is: 237,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,601.40 : 447,902.10 = 158,287.80 : x
  2. Step 2: Convert to fraction form
    298,601.40/447,902.10 = 158,287.80/x
  3. Step 3: Cross multiply
    298,601.40x = 447,902.10 × 158,287.80
  4. Step 4: Simplify right side
    298,601.40x = 70,897,438,024.38
  5. Step 5: Solve for x
    x = 70,897,438,024.38/298,601.40
  6. Step 6: Final answer
    x = 237,431.70

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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.