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Finding the Fourth Proportional to 385,878.12, 579,014.56 and 183,702.66

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Solution

The fourth proportional to 385,878.12, 579,014.56 and 183,702.66 is: 275,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,878.12 : 579,014.56 = 183,702.66 : x
  2. Step 2: Convert to fraction form
    385,878.12/579,014.56 = 183,702.66/x
  3. Step 3: Cross multiply
    385,878.12x = 579,014.56 × 183,702.66
  4. Step 4: Simplify right side
    385,878.12x = 106,366,514,850.73
  5. Step 5: Solve for x
    x = 106,366,514,850.73/385,878.12
  6. Step 6: Final answer
    x = 275,647.96

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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.