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Finding the Fourth Proportional to 383,038.81, 574,667.84 and 130,374.97

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Solution

The fourth proportional to 383,038.81, 574,667.84 and 130,374.97 is: 195,599.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,038.81 : 574,667.84 = 130,374.97 : x
  2. Step 2: Convert to fraction form
    383,038.81/574,667.84 = 130,374.97/x
  3. Step 3: Cross multiply
    383,038.81x = 574,667.84 × 130,374.97
  4. Step 4: Simplify right side
    383,038.81x = 74,922,302,399.96
  5. Step 5: Solve for x
    x = 74,922,302,399.96/383,038.81
  6. Step 6: Final answer
    x = 195,599.77

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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.