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Finding the Fourth Proportional to 262,675.20, 393,897.60 and 104,851.20

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Solution

The fourth proportional to 262,675.20, 393,897.60 and 104,851.20 is: 157,230.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,675.20 : 393,897.60 = 104,851.20 : x
  2. Step 2: Convert to fraction form
    262,675.20/393,897.60 = 104,851.20/x
  3. Step 3: Cross multiply
    262,675.20x = 393,897.60 × 104,851.20
  4. Step 4: Simplify right side
    262,675.20x = 41,300,636,037.12
  5. Step 5: Solve for x
    x = 41,300,636,037.12/262,675.20
  6. Step 6: Final answer
    x = 157,230.82

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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.