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Finding the Fourth Proportional to 275,633.41, 380,347.63 and 154,746.98

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Solution

The fourth proportional to 275,633.41, 380,347.63 and 154,746.98 is: 213,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,633.41 : 380,347.63 = 154,746.98 : x
  2. Step 2: Convert to fraction form
    275,633.41/380,347.63 = 154,746.98/x
  3. Step 3: Cross multiply
    275,633.41x = 380,347.63 × 154,746.98
  4. Step 4: Simplify right side
    275,633.41x = 58,857,649,240.26
  5. Step 5: Solve for x
    x = 58,857,649,240.26/275,633.41
  6. Step 6: Final answer
    x = 213,535.98

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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.