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Finding the Fourth Proportional to 340,963.63, 511,465.93 and 104,308.36

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Solution

The fourth proportional to 340,963.63, 511,465.93 and 104,308.36 is: 156,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,963.63 : 511,465.93 = 104,308.36 : x
  2. Step 2: Convert to fraction form
    340,963.63/511,465.93 = 104,308.36/x
  3. Step 3: Cross multiply
    340,963.63x = 511,465.93 × 104,308.36
  4. Step 4: Simplify right side
    340,963.63x = 53,350,170,814.74
  5. Step 5: Solve for x
    x = 53,350,170,814.74/340,963.63
  6. Step 6: Final answer
    x = 156,468.80

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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.