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Finding the Fourth Proportional to 273,637.20, 410,455.80 and 155,539.20

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Solution

The fourth proportional to 273,637.20, 410,455.80 and 155,539.20 is: 233,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,637.20 : 410,455.80 = 155,539.20 : x
  2. Step 2: Convert to fraction form
    273,637.20/410,455.80 = 155,539.20/x
  3. Step 3: Cross multiply
    273,637.20x = 410,455.80 × 155,539.20
  4. Step 4: Simplify right side
    273,637.20x = 63,841,966,767.36
  5. Step 5: Solve for x
    x = 63,841,966,767.36/273,637.20
  6. Step 6: Final answer
    x = 233,308.80

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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.