Home / 208,590.09-312,374.83-188,372.50

Finding the Fourth Proportional to 208,590.09, 312,374.83 and 188,372.50

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Solution

The fourth proportional to 208,590.09, 312,374.83 and 188,372.50 is: 282,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,590.09 : 312,374.83 = 188,372.50 : x
  2. Step 2: Convert to fraction form
    208,590.09/312,374.83 = 188,372.50/x
  3. Step 3: Cross multiply
    208,590.09x = 312,374.83 × 188,372.50
  4. Step 4: Simplify right side
    208,590.09x = 58,842,827,664.18
  5. Step 5: Solve for x
    x = 58,842,827,664.18/208,590.09
  6. Step 6: Final answer
    x = 282,097.91

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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.