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Finding the Fourth Proportional to 388,347.17, 535,810.82 and 250,467.75

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Solution

The fourth proportional to 388,347.17, 535,810.82 and 250,467.75 is: 345,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,347.17 : 535,810.82 = 250,467.75 : x
  2. Step 2: Convert to fraction form
    388,347.17/535,810.82 = 250,467.75/x
  3. Step 3: Cross multiply
    388,347.17x = 535,810.82 × 250,467.75
  4. Step 4: Simplify right side
    388,347.17x = 134,203,329,258.72
  5. Step 5: Solve for x
    x = 134,203,329,258.72/388,347.17
  6. Step 6: Final answer
    x = 345,575.66

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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.