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Finding the Fourth Proportional to 438,855, 605,619.90 and 237,651

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Solution

The fourth proportional to 438,855, 605,619.90 and 237,651 is: 327,958.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,855 : 605,619.90 = 237,651 : x
  2. Step 2: Convert to fraction form
    438,855/605,619.90 = 237,651/x
  3. Step 3: Cross multiply
    438,855x = 605,619.90 × 237,651
  4. Step 4: Simplify right side
    438,855x = 143,926,174,854.90
  5. Step 5: Solve for x
    x = 143,926,174,854.90/438,855
  6. Step 6: Final answer
    x = 327,958.38

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1.5x scale

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.