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Finding the Fourth Proportional to 340,617.60, 510,980.40 and 115,999.20

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Solution

The fourth proportional to 340,617.60, 510,980.40 and 115,999.20 is: 174,017.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,617.60 : 510,980.40 = 115,999.20 : x
  2. Step 2: Convert to fraction form
    340,617.60/510,980.40 = 115,999.20/x
  3. Step 3: Cross multiply
    340,617.60x = 510,980.40 × 115,999.20
  4. Step 4: Simplify right side
    340,617.60x = 59,273,317,615.68
  5. Step 5: Solve for x
    x = 59,273,317,615.68/340,617.60
  6. Step 6: Final answer
    x = 174,017.19

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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.