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Finding the Fourth Proportional to 303,224.60, 454,836.90 and 90,000.20

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Solution

The fourth proportional to 303,224.60, 454,836.90 and 90,000.20 is: 135,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,224.60 : 454,836.90 = 90,000.20 : x
  2. Step 2: Convert to fraction form
    303,224.60/454,836.90 = 90,000.20/x
  3. Step 3: Cross multiply
    303,224.60x = 454,836.90 × 90,000.20
  4. Step 4: Simplify right side
    303,224.60x = 40,935,411,967.38
  5. Step 5: Solve for x
    x = 40,935,411,967.38/303,224.60
  6. Step 6: Final answer
    x = 135,000.30

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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.