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Finding the Fourth Proportional to 335,128.39, 502,729.53 and 98,489.50

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Solution

The fourth proportional to 335,128.39, 502,729.53 and 98,489.50 is: 147,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,128.39 : 502,729.53 = 98,489.50 : x
  2. Step 2: Convert to fraction form
    335,128.39/502,729.53 = 98,489.50/x
  3. Step 3: Cross multiply
    335,128.39x = 502,729.53 × 98,489.50
  4. Step 4: Simplify right side
    335,128.39x = 49,513,580,044.94
  5. Step 5: Solve for x
    x = 49,513,580,044.94/335,128.39
  6. Step 6: Final answer
    x = 147,745.11

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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.