Home / 242,729.28-334,977.72-135,300.08

Finding the Fourth Proportional to 242,729.28, 334,977.72 and 135,300.08

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Solution

The fourth proportional to 242,729.28, 334,977.72 and 135,300.08 is: 186,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,729.28 : 334,977.72 = 135,300.08 : x
  2. Step 2: Convert to fraction form
    242,729.28/334,977.72 = 135,300.08/x
  3. Step 3: Cross multiply
    242,729.28x = 334,977.72 × 135,300.08
  4. Step 4: Simplify right side
    242,729.28x = 45,322,512,314.22
  5. Step 5: Solve for x
    x = 45,322,512,314.22/242,729.28
  6. Step 6: Final answer
    x = 186,720.42

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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.