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Finding the Fourth Proportional to 383,790.96, 575,727.40 and 103,312.24

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Solution

The fourth proportional to 383,790.96, 575,727.40 and 103,312.24 is: 154,979.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,790.96 : 575,727.40 = 103,312.24 : x
  2. Step 2: Convert to fraction form
    383,790.96/575,727.40 = 103,312.24/x
  3. Step 3: Cross multiply
    383,790.96x = 575,727.40 × 103,312.24
  4. Step 4: Simplify right side
    383,790.96x = 59,479,687,323.38
  5. Step 5: Solve for x
    x = 59,479,687,323.38/383,790.96
  6. Step 6: Final answer
    x = 154,979.39

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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.