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Finding the Fourth Proportional to 387,796.50, 581,690.40 and 151,305.26

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Solution

The fourth proportional to 387,796.50, 581,690.40 and 151,305.26 is: 226,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,796.50 : 581,690.40 = 151,305.26 : x
  2. Step 2: Convert to fraction form
    387,796.50/581,690.40 = 151,305.26/x
  3. Step 3: Cross multiply
    387,796.50x = 581,690.40 × 151,305.26
  4. Step 4: Simplify right side
    387,796.50x = 88,012,817,211.50
  5. Step 5: Solve for x
    x = 88,012,817,211.50/387,796.50
  6. Step 6: Final answer
    x = 226,956.19

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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.