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Finding the Fourth Proportional to 170,830.61, 256,270.41 and 52,511.88

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Solution

The fourth proportional to 170,830.61, 256,270.41 and 52,511.88 is: 78,775.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,830.61 : 256,270.41 = 52,511.88 : x
  2. Step 2: Convert to fraction form
    170,830.61/256,270.41 = 52,511.88/x
  3. Step 3: Cross multiply
    170,830.61x = 256,270.41 × 52,511.88
  4. Step 4: Simplify right side
    170,830.61x = 13,457,241,017.47
  5. Step 5: Solve for x
    x = 13,457,241,017.47/170,830.61
  6. Step 6: Final answer
    x = 78,775.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.