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Finding the Fourth Proportional to 310,676.74, 466,010.37 and 139,777.74

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Solution

The fourth proportional to 310,676.74, 466,010.37 and 139,777.74 is: 209,664.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,676.74 : 466,010.37 = 139,777.74 : x
  2. Step 2: Convert to fraction form
    310,676.74/466,010.37 = 139,777.74/x
  3. Step 3: Cross multiply
    310,676.74x = 466,010.37 × 139,777.74
  4. Step 4: Simplify right side
    310,676.74x = 65,137,876,335.16
  5. Step 5: Solve for x
    x = 65,137,876,335.16/310,676.74
  6. Step 6: Final answer
    x = 209,664.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.