Home / 242,858.05-335,145.57-135,434.87

Finding the Fourth Proportional to 242,858.05, 335,145.57 and 135,434.87

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Solution

The fourth proportional to 242,858.05, 335,145.57 and 135,434.87 is: 186,900.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,858.05 : 335,145.57 = 135,434.87 : x
  2. Step 2: Convert to fraction form
    242,858.05/335,145.57 = 135,434.87/x
  3. Step 3: Cross multiply
    242,858.05x = 335,145.57 × 135,434.87
  4. Step 4: Simplify right side
    242,858.05x = 45,390,395,777.21
  5. Step 5: Solve for x
    x = 45,390,395,777.21/242,858.05
  6. Step 6: Final answer
    x = 186,900.93

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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.