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Finding the Fourth Proportional to 518,112.60, 777,239.58 and 181,075.02

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Solution

The fourth proportional to 518,112.60, 777,239.58 and 181,075.02 is: 271,637.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,112.60 : 777,239.58 = 181,075.02 : x
  2. Step 2: Convert to fraction form
    518,112.60/777,239.58 = 181,075.02/x
  3. Step 3: Cross multiply
    518,112.60x = 777,239.58 × 181,075.02
  4. Step 4: Simplify right side
    518,112.60x = 140,738,672,493.29
  5. Step 5: Solve for x
    x = 140,738,672,493.29/518,112.60
  6. Step 6: Final answer
    x = 271,637.23

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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.