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Finding the Fourth Proportional to 518,351.42, 777,610.50 and 181,384.58

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Solution

The fourth proportional to 518,351.42, 777,610.50 and 181,384.58 is: 272,106.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,351.42 : 777,610.50 = 181,384.58 : x
  2. Step 2: Convert to fraction form
    518,351.42/777,610.50 = 181,384.58/x
  3. Step 3: Cross multiply
    518,351.42x = 777,610.50 × 181,384.58
  4. Step 4: Simplify right side
    518,351.42x = 141,046,553,946.09
  5. Step 5: Solve for x
    x = 141,046,553,946.09/518,351.42
  6. Step 6: Final answer
    x = 272,106.04

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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.