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Finding the Fourth Proportional to 387,992.35, 535,476.06 and 235,026.05

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Solution

The fourth proportional to 387,992.35, 535,476.06 and 235,026.05 is: 324,364.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,992.35 : 535,476.06 = 235,026.05 : x
  2. Step 2: Convert to fraction form
    387,992.35/535,476.06 = 235,026.05/x
  3. Step 3: Cross multiply
    387,992.35x = 535,476.06 × 235,026.05
  4. Step 4: Simplify right side
    387,992.35x = 125,850,824,590.05
  5. Step 5: Solve for x
    x = 125,850,824,590.05/387,992.35
  6. Step 6: Final answer
    x = 324,364.19

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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.