Home / 334,009.78-501,015.07-81,290.28

Finding the Fourth Proportional to 334,009.78, 501,015.07 and 81,290.28

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Solution

The fourth proportional to 334,009.78, 501,015.07 and 81,290.28 is: 121,935.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,009.78 : 501,015.07 = 81,290.28 : x
  2. Step 2: Convert to fraction form
    334,009.78/501,015.07 = 81,290.28/x
  3. Step 3: Cross multiply
    334,009.78x = 501,015.07 × 81,290.28
  4. Step 4: Simplify right side
    334,009.78x = 40,727,657,304.94
  5. Step 5: Solve for x
    x = 40,727,657,304.94/334,009.78
  6. Step 6: Final answer
    x = 121,935.52

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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.