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Finding the Fourth Proportional to 272,035.80, 407,655.30 and 243,955.80

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Solution

The fourth proportional to 272,035.80, 407,655.30 and 243,955.80 is: 365,576.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,035.80 : 407,655.30 = 243,955.80 : x
  2. Step 2: Convert to fraction form
    272,035.80/407,655.30 = 243,955.80/x
  3. Step 3: Cross multiply
    272,035.80x = 407,655.30 × 243,955.80
  4. Step 4: Simplify right side
    272,035.80x = 99,449,874,835.74
  5. Step 5: Solve for x
    x = 99,449,874,835.74/272,035.80
  6. Step 6: Final answer
    x = 365,576.42

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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.