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Finding the Fourth Proportional to 328,359.77, 492,567.60 and 103,660.10

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Solution

The fourth proportional to 328,359.77, 492,567.60 and 103,660.10 is: 155,498.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,359.77 : 492,567.60 = 103,660.10 : x
  2. Step 2: Convert to fraction form
    328,359.77/492,567.60 = 103,660.10/x
  3. Step 3: Cross multiply
    328,359.77x = 492,567.60 × 103,660.10
  4. Step 4: Simplify right side
    328,359.77x = 51,059,606,672.76
  5. Step 5: Solve for x
    x = 51,059,606,672.76/328,359.77
  6. Step 6: Final answer
    x = 155,498.97

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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.