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Finding the Fourth Proportional to 340,673.94, 511,012.80 and 87,937.16

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Solution

The fourth proportional to 340,673.94, 511,012.80 and 87,937.16 is: 131,906.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,673.94 : 511,012.80 = 87,937.16 : x
  2. Step 2: Convert to fraction form
    340,673.94/511,012.80 = 87,937.16/x
  3. Step 3: Cross multiply
    340,673.94x = 511,012.80 × 87,937.16
  4. Step 4: Simplify right side
    340,673.94x = 44,937,011,800.58
  5. Step 5: Solve for x
    x = 44,937,011,800.58/340,673.94
  6. Step 6: Final answer
    x = 131,906.22

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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.