Home / 263,543.91-363,690.81-142,685.28

Finding the Fourth Proportional to 263,543.91, 363,690.81 and 142,685.28

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Solution

The fourth proportional to 263,543.91, 363,690.81 and 142,685.28 is: 196,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,543.91 : 363,690.81 = 142,685.28 : x
  2. Step 2: Convert to fraction form
    263,543.91/363,690.81 = 142,685.28/x
  3. Step 3: Cross multiply
    263,543.91x = 363,690.81 × 142,685.28
  4. Step 4: Simplify right side
    263,543.91x = 51,893,325,058.28
  5. Step 5: Solve for x
    x = 51,893,325,058.28/263,543.91
  6. Step 6: Final answer
    x = 196,905.80

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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.