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Finding the Fourth Proportional to 386,598.44, 579,758.58 and 133,810.26

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Solution

The fourth proportional to 386,598.44, 579,758.58 and 133,810.26 is: 200,667.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,598.44 : 579,758.58 = 133,810.26 : x
  2. Step 2: Convert to fraction form
    386,598.44/579,758.58 = 133,810.26/x
  3. Step 3: Cross multiply
    386,598.44x = 579,758.58 × 133,810.26
  4. Step 4: Simplify right side
    386,598.44x = 77,577,646,327.03
  5. Step 5: Solve for x
    x = 77,577,646,327.03/386,598.44
  6. Step 6: Final answer
    x = 200,667.25

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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.