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Finding the Fourth Proportional to 500,761.40, 751,302.66 and 145,796.72

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Solution

The fourth proportional to 500,761.40, 751,302.66 and 145,796.72 is: 218,741.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,761.40 : 751,302.66 = 145,796.72 : x
  2. Step 2: Convert to fraction form
    500,761.40/751,302.66 = 145,796.72/x
  3. Step 3: Cross multiply
    500,761.40x = 751,302.66 × 145,796.72
  4. Step 4: Simplify right side
    500,761.40x = 109,537,463,555.28
  5. Step 5: Solve for x
    x = 109,537,463,555.28/500,761.40
  6. Step 6: Final answer
    x = 218,741.83

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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.