Home / 399,977.26-552,336.95-256,986.45

Finding the Fourth Proportional to 399,977.26, 552,336.95 and 256,986.45

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Solution

The fourth proportional to 399,977.26, 552,336.95 and 256,986.45 is: 354,877.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,977.26 : 552,336.95 = 256,986.45 : x
  2. Step 2: Convert to fraction form
    399,977.26/552,336.95 = 256,986.45/x
  3. Step 3: Cross multiply
    399,977.26x = 552,336.95 × 256,986.45
  4. Step 4: Simplify right side
    399,977.26x = 141,943,112,626.79
  5. Step 5: Solve for x
    x = 141,943,112,626.79/399,977.26
  6. Step 6: Final answer
    x = 354,877.96

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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.