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Finding the Fourth Proportional to 340,818.72, 511,172.64 and 160,903.78

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Solution

The fourth proportional to 340,818.72, 511,172.64 and 160,903.78 is: 241,329.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,818.72 : 511,172.64 = 160,903.78 : x
  2. Step 2: Convert to fraction form
    340,818.72/511,172.64 = 160,903.78/x
  3. Step 3: Cross multiply
    340,818.72x = 511,172.64 × 160,903.78
  4. Step 4: Simplify right side
    340,818.72x = 82,249,610,008.58
  5. Step 5: Solve for x
    x = 82,249,610,008.58/340,818.72
  6. Step 6: Final answer
    x = 241,329.50

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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.