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Finding the Fourth Proportional to 245,528.01, 338,825.34 and 138,098.01

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Solution

The fourth proportional to 245,528.01, 338,825.34 and 138,098.01 is: 190,573.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,528.01 : 338,825.34 = 138,098.01 : x
  2. Step 2: Convert to fraction form
    245,528.01/338,825.34 = 138,098.01/x
  3. Step 3: Cross multiply
    245,528.01x = 338,825.34 × 138,098.01
  4. Step 4: Simplify right side
    245,528.01x = 46,791,105,191.57
  5. Step 5: Solve for x
    x = 46,791,105,191.57/245,528.01
  6. Step 6: Final answer
    x = 190,573.39

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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.