Home / 263,549.91-363,699.09-142,691.28

Finding the Fourth Proportional to 263,549.91, 363,699.09 and 142,691.28

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Solution

The fourth proportional to 263,549.91, 363,699.09 and 142,691.28 is: 196,914.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,549.91 : 363,699.09 = 142,691.28 : x
  2. Step 2: Convert to fraction form
    263,549.91/363,699.09 = 142,691.28/x
  3. Step 3: Cross multiply
    263,549.91x = 363,699.09 × 142,691.28
  4. Step 4: Simplify right side
    263,549.91x = 51,896,688,686.94
  5. Step 5: Solve for x
    x = 51,896,688,686.94/263,549.91
  6. Step 6: Final answer
    x = 196,914.08

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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.