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Finding the Fourth Proportional to 559,904.20, 839,855.22 and 139,180.48

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Solution

The fourth proportional to 559,904.20, 839,855.22 and 139,180.48 is: 208,770.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,904.20 : 839,855.22 = 139,180.48 : x
  2. Step 2: Convert to fraction form
    559,904.20/839,855.22 = 139,180.48/x
  3. Step 3: Cross multiply
    559,904.20x = 839,855.22 × 139,180.48
  4. Step 4: Simplify right side
    559,904.20x = 116,891,452,650.11
  5. Step 5: Solve for x
    x = 116,891,452,650.11/559,904.20
  6. Step 6: Final answer
    x = 208,770.45

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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.