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Finding the Fourth Proportional to 383,985.62, 576,235.54 and 159,346.28

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Solution

The fourth proportional to 383,985.62, 576,235.54 and 159,346.28 is: 239,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,985.62 : 576,235.54 = 159,346.28 : x
  2. Step 2: Convert to fraction form
    383,985.62/576,235.54 = 159,346.28/x
  3. Step 3: Cross multiply
    383,985.62x = 576,235.54 × 159,346.28
  4. Step 4: Simplify right side
    383,985.62x = 91,820,989,702.79
  5. Step 5: Solve for x
    x = 91,820,989,702.79/383,985.62
  6. Step 6: Final answer
    x = 239,126.12

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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.