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Finding the Fourth Proportional to 302,681.70, 454,022.55 and 269,439.30

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Solution

The fourth proportional to 302,681.70, 454,022.55 and 269,439.30 is: 404,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,681.70 : 454,022.55 = 269,439.30 : x
  2. Step 2: Convert to fraction form
    302,681.70/454,022.55 = 269,439.30/x
  3. Step 3: Cross multiply
    302,681.70x = 454,022.55 × 269,439.30
  4. Step 4: Simplify right side
    302,681.70x = 122,331,518,056.22
  5. Step 5: Solve for x
    x = 122,331,518,056.22/302,681.70
  6. Step 6: Final answer
    x = 404,158.95

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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.