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Finding the Fourth Proportional to 253,688.68, 349,999.14 and 153,049.96

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Solution

The fourth proportional to 253,688.68, 349,999.14 and 153,049.96 is: 211,153.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,688.68 : 349,999.14 = 153,049.96 : x
  2. Step 2: Convert to fraction form
    253,688.68/349,999.14 = 153,049.96/x
  3. Step 3: Cross multiply
    253,688.68x = 349,999.14 × 153,049.96
  4. Step 4: Simplify right side
    253,688.68x = 53,567,354,377.03
  5. Step 5: Solve for x
    x = 53,567,354,377.03/253,688.68
  6. Step 6: Final answer
    x = 211,153.90

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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.