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Finding the Fourth Proportional to 328,606.47, 492,927.65 and 103,950.20

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Solution

The fourth proportional to 328,606.47, 492,927.65 and 103,950.20 is: 155,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,606.47 : 492,927.65 = 103,950.20 : x
  2. Step 2: Convert to fraction form
    328,606.47/492,927.65 = 103,950.20/x
  3. Step 3: Cross multiply
    328,606.47x = 492,927.65 × 103,950.20
  4. Step 4: Simplify right side
    328,606.47x = 51,239,926,667.12
  5. Step 5: Solve for x
    x = 51,239,926,667.12/328,606.47
  6. Step 6: Final answer
    x = 155,930.97

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1.5x scale

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.