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Finding the Fourth Proportional to 450,145.69, 621,178.02 and 246,156.96

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Solution

The fourth proportional to 450,145.69, 621,178.02 and 246,156.96 is: 339,684.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,145.69 : 621,178.02 = 246,156.96 : x
  2. Step 2: Convert to fraction form
    450,145.69/621,178.02 = 246,156.96/x
  3. Step 3: Cross multiply
    450,145.69x = 621,178.02 × 246,156.96
  4. Step 4: Simplify right side
    450,145.69x = 152,907,293,022.02
  5. Step 5: Solve for x
    x = 152,907,293,022.02/450,145.69
  6. Step 6: Final answer
    x = 339,684.01

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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.