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Finding the Fourth Proportional to 450,299.47, 621,411.05 and 246,346.68

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Solution

The fourth proportional to 450,299.47, 621,411.05 and 246,346.68 is: 339,957.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,299.47 : 621,411.05 = 246,346.68 : x
  2. Step 2: Convert to fraction form
    450,299.47/621,411.05 = 246,346.68/x
  3. Step 3: Cross multiply
    450,299.47x = 621,411.05 × 246,346.68
  4. Step 4: Simplify right side
    450,299.47x = 153,082,548,194.91
  5. Step 5: Solve for x
    x = 153,082,548,194.91/450,299.47
  6. Step 6: Final answer
    x = 339,957.21

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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.