Home / 273,990.08-378,099.20-153,132.36

Finding the Fourth Proportional to 273,990.08, 378,099.20 and 153,132.36

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Solution

The fourth proportional to 273,990.08, 378,099.20 and 153,132.36 is: 211,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,990.08 : 378,099.20 = 153,132.36 : x
  2. Step 2: Convert to fraction form
    273,990.08/378,099.20 = 153,132.36/x
  3. Step 3: Cross multiply
    273,990.08x = 378,099.20 × 153,132.36
  4. Step 4: Simplify right side
    273,990.08x = 57,899,222,810.11
  5. Step 5: Solve for x
    x = 57,899,222,810.11/273,990.08
  6. Step 6: Final answer
    x = 211,318.68

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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.