Home / 273,871.10-378,047.61-245,140.09

Finding the Fourth Proportional to 273,871.10, 378,047.61 and 245,140.09

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Solution

The fourth proportional to 273,871.10, 378,047.61 and 245,140.09 is: 338,387.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,871.10 : 378,047.61 = 245,140.09 : x
  2. Step 2: Convert to fraction form
    273,871.10/378,047.61 = 245,140.09/x
  3. Step 3: Cross multiply
    273,871.10x = 378,047.61 × 245,140.09
  4. Step 4: Simplify right side
    273,871.10x = 92,674,624,194.57
  5. Step 5: Solve for x
    x = 92,674,624,194.57/273,871.10
  6. Step 6: Final answer
    x = 338,387.74

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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.