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Finding the Fourth Proportional to 425,725.02, 638,352.06 and 169,297.92

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Solution

The fourth proportional to 425,725.02, 638,352.06 and 169,297.92 is: 253,853.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,725.02 : 638,352.06 = 169,297.92 : x
  2. Step 2: Convert to fraction form
    425,725.02/638,352.06 = 169,297.92/x
  3. Step 3: Cross multiply
    425,725.02x = 638,352.06 × 169,297.92
  4. Step 4: Simplify right side
    425,725.02x = 108,071,675,985.72
  5. Step 5: Solve for x
    x = 108,071,675,985.72/425,725.02
  6. Step 6: Final answer
    x = 253,853.24

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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.