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Finding the Fourth Proportional to 361,411.04, 498,583.68 and 218,125.28

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Solution

The fourth proportional to 361,411.04, 498,583.68 and 218,125.28 is: 300,914.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,411.04 : 498,583.68 = 218,125.28 : x
  2. Step 2: Convert to fraction form
    361,411.04/498,583.68 = 218,125.28/x
  3. Step 3: Cross multiply
    361,411.04x = 498,583.68 × 218,125.28
  4. Step 4: Simplify right side
    361,411.04x = 108,753,704,803.43
  5. Step 5: Solve for x
    x = 108,753,704,803.43/361,411.04
  6. Step 6: Final answer
    x = 300,914.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.