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Finding the Fourth Proportional to 559,989.20, 839,908.20 and 223,277.60

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Solution

The fourth proportional to 559,989.20, 839,908.20 and 223,277.60 is: 334,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,989.20 : 839,908.20 = 223,277.60 : x
  2. Step 2: Convert to fraction form
    559,989.20/839,908.20 = 223,277.60/x
  3. Step 3: Cross multiply
    559,989.20x = 839,908.20 × 223,277.60
  4. Step 4: Simplify right side
    559,989.20x = 187,532,687,116.32
  5. Step 5: Solve for x
    x = 187,532,687,116.32/559,989.20
  6. Step 6: Final answer
    x = 334,886.26

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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.