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Finding the Fourth Proportional to 340,851.60, 511,272.60 and 153,862.80

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Solution

The fourth proportional to 340,851.60, 511,272.60 and 153,862.80 is: 230,792.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,851.60 : 511,272.60 = 153,862.80 : x
  2. Step 2: Convert to fraction form
    340,851.60/511,272.60 = 153,862.80/x
  3. Step 3: Cross multiply
    340,851.60x = 511,272.60 × 153,862.80
  4. Step 4: Simplify right side
    340,851.60x = 78,665,833,799.28
  5. Step 5: Solve for x
    x = 78,665,833,799.28/340,851.60
  6. Step 6: Final answer
    x = 230,792.03

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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.