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Finding the Fourth Proportional to 328,052.80, 492,079.20 and 300,059.20

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Solution

The fourth proportional to 328,052.80, 492,079.20 and 300,059.20 is: 450,088.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,052.80 : 492,079.20 = 300,059.20 : x
  2. Step 2: Convert to fraction form
    328,052.80/492,079.20 = 300,059.20/x
  3. Step 3: Cross multiply
    328,052.80x = 492,079.20 × 300,059.20
  4. Step 4: Simplify right side
    328,052.80x = 147,652,891,088.64
  5. Step 5: Solve for x
    x = 147,652,891,088.64/328,052.80
  6. Step 6: Final answer
    x = 450,088.80

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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.