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Finding the Fourth Proportional to 425,548.84, 638,339.46 and 159,281.32

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Solution

The fourth proportional to 425,548.84, 638,339.46 and 159,281.32 is: 238,928.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,548.84 : 638,339.46 = 159,281.32 : x
  2. Step 2: Convert to fraction form
    425,548.84/638,339.46 = 159,281.32/x
  3. Step 3: Cross multiply
    425,548.84x = 638,339.46 × 159,281.32
  4. Step 4: Simplify right side
    425,548.84x = 101,675,551,796.89
  5. Step 5: Solve for x
    x = 101,675,551,796.89/425,548.84
  6. Step 6: Final answer
    x = 238,928.04

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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.