Home / 280,964.04-420,935.64-162,384.88

Finding the Fourth Proportional to 280,964.04, 420,935.64 and 162,384.88

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Solution

The fourth proportional to 280,964.04, 420,935.64 and 162,384.88 is: 243,282.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,964.04 : 420,935.64 = 162,384.88 : x
  2. Step 2: Convert to fraction form
    280,964.04/420,935.64 = 162,384.88/x
  3. Step 3: Cross multiply
    280,964.04x = 420,935.64 × 162,384.88
  4. Step 4: Simplify right side
    280,964.04x = 68,353,583,389.12
  5. Step 5: Solve for x
    x = 68,353,583,389.12/280,964.04
  6. Step 6: Final answer
    x = 243,282.32

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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.