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Finding the Fourth Proportional to 253,036, 349,189.68 and 152,454.88

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Solution

The fourth proportional to 253,036, 349,189.68 and 152,454.88 is: 210,387.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,036 : 349,189.68 = 152,454.88 : x
  2. Step 2: Convert to fraction form
    253,036/349,189.68 = 152,454.88/x
  3. Step 3: Cross multiply
    253,036x = 349,189.68 × 152,454.88
  4. Step 4: Simplify right side
    253,036x = 53,235,670,761.64
  5. Step 5: Solve for x
    x = 53,235,670,761.64/253,036
  6. Step 6: Final answer
    x = 210,387.73

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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.