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Finding the Fourth Proportional to 288,349.20, 429,563.46 and 275,395.47

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Solution

The fourth proportional to 288,349.20, 429,563.46 and 275,395.47 is: 410,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,349.20 : 429,563.46 = 275,395.47 : x
  2. Step 2: Convert to fraction form
    288,349.20/429,563.46 = 275,395.47/x
  3. Step 3: Cross multiply
    288,349.20x = 429,563.46 × 275,395.47
  4. Step 4: Simplify right side
    288,349.20x = 118,299,830,961.53
  5. Step 5: Solve for x
    x = 118,299,830,961.53/288,349.20
  6. Step 6: Final answer
    x = 410,265.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.