Home / 401,548.38-602,378.16-135,385

Finding the Fourth Proportional to 401,548.38, 602,378.16 and 135,385

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Solution

The fourth proportional to 401,548.38, 602,378.16 and 135,385 is: 203,096.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,548.38 : 602,378.16 = 135,385 : x
  2. Step 2: Convert to fraction form
    401,548.38/602,378.16 = 135,385/x
  3. Step 3: Cross multiply
    401,548.38x = 602,378.16 × 135,385
  4. Step 4: Simplify right side
    401,548.38x = 81,552,967,191.60
  5. Step 5: Solve for x
    x = 81,552,967,191.60/401,548.38
  6. Step 6: Final answer
    x = 203,096.24

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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.