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Finding the Fourth Proportional to 272,299.65, 375,783.88 and 151,449.68

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Solution

The fourth proportional to 272,299.65, 375,783.88 and 151,449.68 is: 209,006.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,299.65 : 375,783.88 = 151,449.68 : x
  2. Step 2: Convert to fraction form
    272,299.65/375,783.88 = 151,449.68/x
  3. Step 3: Cross multiply
    272,299.65x = 375,783.88 × 151,449.68
  4. Step 4: Simplify right side
    272,299.65x = 56,912,346,117.61
  5. Step 5: Solve for x
    x = 56,912,346,117.61/272,299.65
  6. Step 6: Final answer
    x = 209,006.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.