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Finding the Fourth Proportional to 353,786.04, 488,159.86 and 208,637.35

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Solution

The fourth proportional to 353,786.04, 488,159.86 and 208,637.35 is: 287,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,786.04 : 488,159.86 = 208,637.35 : x
  2. Step 2: Convert to fraction form
    353,786.04/488,159.86 = 208,637.35/x
  3. Step 3: Cross multiply
    353,786.04x = 488,159.86 × 208,637.35
  4. Step 4: Simplify right side
    353,786.04x = 101,848,379,566.77
  5. Step 5: Solve for x
    x = 101,848,379,566.77/353,786.04
  6. Step 6: Final answer
    x = 287,881.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.