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Finding the Fourth Proportional to 559,891.64, 839,340.18 and 218,256.32

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Solution

The fourth proportional to 559,891.64, 839,340.18 and 218,256.32 is: 327,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,891.64 : 839,340.18 = 218,256.32 : x
  2. Step 2: Convert to fraction form
    559,891.64/839,340.18 = 218,256.32/x
  3. Step 3: Cross multiply
    559,891.64x = 839,340.18 × 218,256.32
  4. Step 4: Simplify right side
    559,891.64x = 183,191,298,914.94
  5. Step 5: Solve for x
    x = 183,191,298,914.94/559,891.64
  6. Step 6: Final answer
    x = 327,190.63

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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.