Home / 393,271.94-542,761.35-223,531.58

Finding the Fourth Proportional to 393,271.94, 542,761.35 and 223,531.58

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Solution

The fourth proportional to 393,271.94, 542,761.35 and 223,531.58 is: 308,499.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,271.94 : 542,761.35 = 223,531.58 : x
  2. Step 2: Convert to fraction form
    393,271.94/542,761.35 = 223,531.58/x
  3. Step 3: Cross multiply
    393,271.94x = 542,761.35 × 223,531.58
  4. Step 4: Simplify right side
    393,271.94x = 121,324,302,128.43
  5. Step 5: Solve for x
    x = 121,324,302,128.43/393,271.94
  6. Step 6: Final answer
    x = 308,499.77

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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.