Home / 340,972.60-511,458.90-208,112.35

Finding the Fourth Proportional to 340,972.60, 511,458.90 and 208,112.35

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Solution

The fourth proportional to 340,972.60, 511,458.90 and 208,112.35 is: 312,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,972.60 : 511,458.90 = 208,112.35 : x
  2. Step 2: Convert to fraction form
    340,972.60/511,458.90 = 208,112.35/x
  3. Step 3: Cross multiply
    340,972.60x = 511,458.90 × 208,112.35
  4. Step 4: Simplify right side
    340,972.60x = 106,440,913,607.42
  5. Step 5: Solve for x
    x = 106,440,913,607.42/340,972.60
  6. Step 6: Final answer
    x = 312,168.53

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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.