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Finding the Fourth Proportional to 559,890.64, 839,338.68 and 218,255.32

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Solution

The fourth proportional to 559,890.64, 839,338.68 and 218,255.32 is: 327,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,890.64 : 839,338.68 = 218,255.32 : x
  2. Step 2: Convert to fraction form
    559,890.64/839,338.68 = 218,255.32/x
  3. Step 3: Cross multiply
    559,890.64x = 839,338.68 × 218,255.32
  4. Step 4: Simplify right side
    559,890.64x = 183,190,132,191.78
  5. Step 5: Solve for x
    x = 183,190,132,191.78/559,890.64
  6. Step 6: Final answer
    x = 327,189.13

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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.