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Finding the Fourth Proportional to 439,302.38, 659,054.70 and 186,590.88

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Solution

The fourth proportional to 439,302.38, 659,054.70 and 186,590.88 is: 279,929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,302.38 : 659,054.70 = 186,590.88 : x
  2. Step 2: Convert to fraction form
    439,302.38/659,054.70 = 186,590.88/x
  3. Step 3: Cross multiply
    439,302.38x = 659,054.70 × 186,590.88
  4. Step 4: Simplify right side
    439,302.38x = 122,973,596,441.14
  5. Step 5: Solve for x
    x = 122,973,596,441.14/439,302.38
  6. Step 6: Final answer
    x = 279,929.28

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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.