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Finding the Fourth Proportional to 610,449.66, 915,805.72 and 205,682.10

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Solution

The fourth proportional to 610,449.66, 915,805.72 and 205,682.10 is: 308,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,449.66 : 915,805.72 = 205,682.10 : x
  2. Step 2: Convert to fraction form
    610,449.66/915,805.72 = 205,682.10/x
  3. Step 3: Cross multiply
    610,449.66x = 915,805.72 × 205,682.10
  4. Step 4: Simplify right side
    610,449.66x = 188,364,843,681.61
  5. Step 5: Solve for x
    x = 188,364,843,681.61/610,449.66
  6. Step 6: Final answer
    x = 308,567.37

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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.