Home / 242,913.32-335,220.89-135,480.59

Finding the Fourth Proportional to 242,913.32, 335,220.89 and 135,480.59

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Solution

The fourth proportional to 242,913.32, 335,220.89 and 135,480.59 is: 186,963.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,913.32 : 335,220.89 = 135,480.59 : x
  2. Step 2: Convert to fraction form
    242,913.32/335,220.89 = 135,480.59/x
  3. Step 3: Cross multiply
    242,913.32x = 335,220.89 × 135,480.59
  4. Step 4: Simplify right side
    242,913.32x = 45,415,921,604.02
  5. Step 5: Solve for x
    x = 45,415,921,604.02/242,913.32
  6. Step 6: Final answer
    x = 186,963.49

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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.