Home / 387,947.88-535,356.54-235,076.58

Finding the Fourth Proportional to 387,947.88, 535,356.54 and 235,076.58

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Solution

The fourth proportional to 387,947.88, 535,356.54 and 235,076.58 is: 324,398.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,947.88 : 535,356.54 = 235,076.58 : x
  2. Step 2: Convert to fraction form
    387,947.88/535,356.54 = 235,076.58/x
  3. Step 3: Cross multiply
    387,947.88x = 535,356.54 × 235,076.58
  4. Step 4: Simplify right side
    387,947.88x = 125,849,784,503.83
  5. Step 5: Solve for x
    x = 125,849,784,503.83/387,947.88
  6. Step 6: Final answer
    x = 324,398.69

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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.