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Finding the Fourth Proportional to 253,526.76, 349,865.73 and 137,239.92

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Solution

The fourth proportional to 253,526.76, 349,865.73 and 137,239.92 is: 189,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,526.76 : 349,865.73 = 137,239.92 : x
  2. Step 2: Convert to fraction form
    253,526.76/349,865.73 = 137,239.92/x
  3. Step 3: Cross multiply
    253,526.76x = 349,865.73 × 137,239.92
  4. Step 4: Simplify right side
    253,526.76x = 48,015,544,795.94
  5. Step 5: Solve for x
    x = 48,015,544,795.94/253,526.76
  6. Step 6: Final answer
    x = 189,390.44

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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.