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Finding the Fourth Proportional to 450,256.56, 621,327.96 and 246,266.70

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Solution

The fourth proportional to 450,256.56, 621,327.96 and 246,266.70 is: 339,833.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,256.56 : 621,327.96 = 246,266.70 : x
  2. Step 2: Convert to fraction form
    450,256.56/621,327.96 = 246,266.70/x
  3. Step 3: Cross multiply
    450,256.56x = 621,327.96 × 246,266.70
  4. Step 4: Simplify right side
    450,256.56x = 153,012,386,326.93
  5. Step 5: Solve for x
    x = 153,012,386,326.93/450,256.56
  6. Step 6: Final answer
    x = 339,833.77

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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.