Home / 387,892.20-535,364.96-242,765.48

Finding the Fourth Proportional to 387,892.20, 535,364.96 and 242,765.48

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Solution

The fourth proportional to 387,892.20, 535,364.96 and 242,765.48 is: 335,062.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,892.20 : 535,364.96 = 242,765.48 : x
  2. Step 2: Convert to fraction form
    387,892.20/535,364.96 = 242,765.48/x
  3. Step 3: Cross multiply
    387,892.20x = 535,364.96 × 242,765.48
  4. Step 4: Simplify right side
    387,892.20x = 129,968,127,598.93
  5. Step 5: Solve for x
    x = 129,968,127,598.93/387,892.20
  6. Step 6: Final answer
    x = 335,062.49

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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.