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Finding the Fourth Proportional to 328,052.10, 492,078.15 and 299,021.70

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Solution

The fourth proportional to 328,052.10, 492,078.15 and 299,021.70 is: 448,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,052.10 : 492,078.15 = 299,021.70 : x
  2. Step 2: Convert to fraction form
    328,052.10/492,078.15 = 299,021.70/x
  3. Step 3: Cross multiply
    328,052.10x = 492,078.15 × 299,021.70
  4. Step 4: Simplify right side
    328,052.10x = 147,142,044,945.86
  5. Step 5: Solve for x
    x = 147,142,044,945.86/328,052.10
  6. Step 6: Final answer
    x = 448,532.55

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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.