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Finding the Fourth Proportional to 355,283.30, 533,216.55 and 343,619.30

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Solution

The fourth proportional to 355,283.30, 533,216.55 and 343,619.30 is: 515,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,283.30 : 533,216.55 = 343,619.30 : x
  2. Step 2: Convert to fraction form
    355,283.30/533,216.55 = 343,619.30/x
  3. Step 3: Cross multiply
    355,283.30x = 533,216.55 × 343,619.30
  4. Step 4: Simplify right side
    355,283.30x = 183,223,497,659.42
  5. Step 5: Solve for x
    x = 183,223,497,659.42/355,283.30
  6. Step 6: Final answer
    x = 515,710.98

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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.