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Finding the Fourth Proportional to 340,782.47, 511,265.74 and 104,118.69

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Solution

The fourth proportional to 340,782.47, 511,265.74 and 104,118.69 is: 156,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,782.47 : 511,265.74 = 104,118.69 : x
  2. Step 2: Convert to fraction form
    340,782.47/511,265.74 = 104,118.69/x
  3. Step 3: Cross multiply
    340,782.47x = 511,265.74 × 104,118.69
  4. Step 4: Simplify right side
    340,782.47x = 53,232,319,090.68
  5. Step 5: Solve for x
    x = 53,232,319,090.68/340,782.47
  6. Step 6: Final answer
    x = 156,206.15

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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.