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Finding the Fourth Proportional to 450,308.48, 621,423.45 and 246,355.70

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Solution

The fourth proportional to 450,308.48, 621,423.45 and 246,355.70 is: 339,969.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,308.48 : 621,423.45 = 246,355.70 : x
  2. Step 2: Convert to fraction form
    450,308.48/621,423.45 = 246,355.70/x
  3. Step 3: Cross multiply
    450,308.48x = 621,423.45 × 246,355.70
  4. Step 4: Simplify right side
    450,308.48x = 153,091,205,914.05
  5. Step 5: Solve for x
    x = 153,091,205,914.05/450,308.48
  6. Step 6: Final answer
    x = 339,969.63

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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.