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Finding the Fourth Proportional to 340,948.48, 511,448.64 and 104,308.96

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Solution

The fourth proportional to 340,948.48, 511,448.64 and 104,308.96 is: 156,471.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,948.48 : 511,448.64 = 104,308.96 : x
  2. Step 2: Convert to fraction form
    340,948.48/511,448.64 = 104,308.96/x
  3. Step 3: Cross multiply
    340,948.48x = 511,448.64 × 104,308.96
  4. Step 4: Simplify right side
    340,948.48x = 53,348,675,731.81
  5. Step 5: Solve for x
    x = 53,348,675,731.81/340,948.48
  6. Step 6: Final answer
    x = 156,471.37

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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.