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Finding the Fourth Proportional to 384,347.63, 576,135.53 and 131,455.25

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Solution

The fourth proportional to 384,347.63, 576,135.53 and 131,455.25 is: 197,050.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,347.63 : 576,135.53 = 131,455.25 : x
  2. Step 2: Convert to fraction form
    384,347.63/576,135.53 = 131,455.25/x
  3. Step 3: Cross multiply
    384,347.63x = 576,135.53 × 131,455.25
  4. Step 4: Simplify right side
    384,347.63x = 75,736,043,225.74
  5. Step 5: Solve for x
    x = 75,736,043,225.74/384,347.63
  6. Step 6: Final answer
    x = 197,050.89

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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.