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Finding the Fourth Proportional to 450,257.82, 621,384.66 and 259,267.11

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Solution

The fourth proportional to 450,257.82, 621,384.66 and 259,267.11 is: 357,805.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,257.82 : 621,384.66 = 259,267.11 : x
  2. Step 2: Convert to fraction form
    450,257.82/621,384.66 = 259,267.11/x
  3. Step 3: Cross multiply
    450,257.82x = 621,384.66 × 259,267.11
  4. Step 4: Simplify right side
    450,257.82x = 161,104,604,996.53
  5. Step 5: Solve for x
    x = 161,104,604,996.53/450,257.82
  6. Step 6: Final answer
    x = 357,805.23

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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.