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Finding the Fourth Proportional to 340,806.47, 511,208.15 and 88,065.48

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Solution

The fourth proportional to 340,806.47, 511,208.15 and 88,065.48 is: 132,097.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,806.47 : 511,208.15 = 88,065.48 : x
  2. Step 2: Convert to fraction form
    340,806.47/511,208.15 = 88,065.48/x
  3. Step 3: Cross multiply
    340,806.47x = 511,208.15 × 88,065.48
  4. Step 4: Simplify right side
    340,806.47x = 45,019,791,109.66
  5. Step 5: Solve for x
    x = 45,019,791,109.66/340,806.47
  6. Step 6: Final answer
    x = 132,097.82

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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.