Home / 401,836.85-602,336.07-135,505.79

Finding the Fourth Proportional to 401,836.85, 602,336.07 and 135,505.79

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Solution

The fourth proportional to 401,836.85, 602,336.07 and 135,505.79 is: 203,117.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,836.85 : 602,336.07 = 135,505.79 : x
  2. Step 2: Convert to fraction form
    401,836.85/602,336.07 = 135,505.79/x
  3. Step 3: Cross multiply
    401,836.85x = 602,336.07 × 135,505.79
  4. Step 4: Simplify right side
    401,836.85x = 81,620,021,999.17
  5. Step 5: Solve for x
    x = 81,620,021,999.17/401,836.85
  6. Step 6: Final answer
    x = 203,117.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.