Home / 215,835.14-298,040.54-135,400.92

Finding the Fourth Proportional to 215,835.14, 298,040.54 and 135,400.92

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Solution

The fourth proportional to 215,835.14, 298,040.54 and 135,400.92 is: 186,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,835.14 : 298,040.54 = 135,400.92 : x
  2. Step 2: Convert to fraction form
    215,835.14/298,040.54 = 135,400.92/x
  3. Step 3: Cross multiply
    215,835.14x = 298,040.54 × 135,400.92
  4. Step 4: Simplify right side
    215,835.14x = 40,354,963,313.30
  5. Step 5: Solve for x
    x = 40,354,963,313.30/215,835.14
  6. Step 6: Final answer
    x = 186,971.24

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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.