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Finding the Fourth Proportional to 450,262.33, 621,395.75 and 256,674.66

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Solution

The fourth proportional to 450,262.33, 621,395.75 and 256,674.66 is: 354,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,262.33 : 621,395.75 = 256,674.66 : x
  2. Step 2: Convert to fraction form
    450,262.33/621,395.75 = 256,674.66/x
  3. Step 3: Cross multiply
    450,262.33x = 621,395.75 × 256,674.66
  4. Step 4: Simplify right side
    450,262.33x = 159,496,541,168.15
  5. Step 5: Solve for x
    x = 159,496,541,168.15/450,262.33
  6. Step 6: Final answer
    x = 354,230.26

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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.