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Finding the Fourth Proportional to 253,158.01, 379,407.44 and 103,222.76

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Solution

The fourth proportional to 253,158.01, 379,407.44 and 103,222.76 is: 154,699.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,158.01 : 379,407.44 = 103,222.76 : x
  2. Step 2: Convert to fraction form
    253,158.01/379,407.44 = 103,222.76/x
  3. Step 3: Cross multiply
    253,158.01x = 379,407.44 × 103,222.76
  4. Step 4: Simplify right side
    253,158.01x = 39,163,481,482.35
  5. Step 5: Solve for x
    x = 39,163,481,482.35/253,158.01
  6. Step 6: Final answer
    x = 154,699.75

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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.