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Finding the Fourth Proportional to 302,874.30, 454,311.45 and 272,807.10

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Solution

The fourth proportional to 302,874.30, 454,311.45 and 272,807.10 is: 409,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,874.30 : 454,311.45 = 272,807.10 : x
  2. Step 2: Convert to fraction form
    302,874.30/454,311.45 = 272,807.10/x
  3. Step 3: Cross multiply
    302,874.30x = 454,311.45 × 272,807.10
  4. Step 4: Simplify right side
    302,874.30x = 123,939,389,171.30
  5. Step 5: Solve for x
    x = 123,939,389,171.30/302,874.30
  6. Step 6: Final answer
    x = 409,210.65

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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.