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Finding the Fourth Proportional to 340,970.60, 511,455.90 and 208,110.35

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Solution

The fourth proportional to 340,970.60, 511,455.90 and 208,110.35 is: 312,165.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,970.60 : 511,455.90 = 208,110.35 : x
  2. Step 2: Convert to fraction form
    340,970.60/511,455.90 = 208,110.35/x
  3. Step 3: Cross multiply
    340,970.60x = 511,455.90 × 208,110.35
  4. Step 4: Simplify right side
    340,970.60x = 106,439,266,358.57
  5. Step 5: Solve for x
    x = 106,439,266,358.57/340,970.60
  6. Step 6: Final answer
    x = 312,165.53

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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.