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Finding the Fourth Proportional to 383,119.29, 528,599.40 and 266,702.29

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Solution

The fourth proportional to 383,119.29, 528,599.40 and 266,702.29 is: 367,975.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,119.29 : 528,599.40 = 266,702.29 : x
  2. Step 2: Convert to fraction form
    383,119.29/528,599.40 = 266,702.29/x
  3. Step 3: Cross multiply
    383,119.29x = 528,599.40 × 266,702.29
  4. Step 4: Simplify right side
    383,119.29x = 140,978,670,203.64
  5. Step 5: Solve for x
    x = 140,978,670,203.64/383,119.29
  6. Step 6: Final answer
    x = 367,975.92

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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.