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Finding the Fourth Proportional to 328,681.76, 493,096.47 and 104,055.68

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Solution

The fourth proportional to 328,681.76, 493,096.47 and 104,055.68 is: 156,106.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,681.76 : 493,096.47 = 104,055.68 : x
  2. Step 2: Convert to fraction form
    328,681.76/493,096.47 = 104,055.68/x
  3. Step 3: Cross multiply
    328,681.76x = 493,096.47 × 104,055.68
  4. Step 4: Simplify right side
    328,681.76x = 51,309,488,491.45
  5. Step 5: Solve for x
    x = 51,309,488,491.45/328,681.76
  6. Step 6: Final answer
    x = 156,106.89

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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.