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Finding the Fourth Proportional to 559,886.33, 839,830.16 and 139,162.21

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Solution

The fourth proportional to 559,886.33, 839,830.16 and 139,162.21 is: 208,743.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,886.33 : 839,830.16 = 139,162.21 : x
  2. Step 2: Convert to fraction form
    559,886.33/839,830.16 = 139,162.21/x
  3. Step 3: Cross multiply
    559,886.33x = 839,830.16 × 139,162.21
  4. Step 4: Simplify right side
    559,886.33x = 116,872,618,555.80
  5. Step 5: Solve for x
    x = 116,872,618,555.80/559,886.33
  6. Step 6: Final answer
    x = 208,743.47

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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.